Stamford weather by month

Check out Stamford weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Stamford (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
36°F maximum daytime temperature in January in Stamford36
39°F maximum daytime temperature in February in Stamford39
48°F maximum daytime temperature in March in Stamford48
59°F maximum daytime temperature in April in Stamford59
70°F maximum daytime temperature in May in Stamford70
79°F maximum daytime temperature in June in Stamford79
84°F maximum daytime temperature in July in Stamford84
82°F maximum daytime temperature in August in Stamford82
73°F maximum daytime temperature in September in Stamford73
64°F maximum daytime temperature in October in Stamford64
54°F maximum daytime temperature in November in Stamford54
41°F maximum daytime temperature in December in Stamford41
Min temperature (night-time)
18°F minimum night-time temperature in January in Stamford18
19°F minimum night-time temperature in February in Stamford19
28°F minimum night-time temperature in March in Stamford28
37°F minimum night-time temperature in April in Stamford37
46°F minimum night-time temperature in May in Stamford46
55°F minimum night-time temperature in June in Stamford55
61°F minimum night-time temperature in July in Stamford61
59°F minimum night-time temperature in August in Stamford59
52°F minimum night-time temperature in September in Stamford52
41°F minimum night-time temperature in October in Stamford41
34°F minimum night-time temperature in November in Stamford34
23°F minimum night-time temperature in December in Stamford23
Heat & Humidity
No heat & humidity in January in Stamford0
No heat & humidity in February in Stamford0
No heat & humidity in March in Stamford0
No heat & humidity in April in Stamford0
No heat & humidity in May in Stamford0
Low heat & humidity in June in StamfordL
Moderate heat & humidity in July in StamfordM
Moderate heat & humidity in August in StamfordM
No heat & humidity in September in Stamford0
No heat & humidity in October in Stamford0
No heat & humidity in November in Stamford0
No heat & humidity in December in Stamford0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Stamford

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Stamford10
11 hours of daylight per day in February in Stamford11
12 hours of daylight per day in March in Stamford12
13 hours of daylight per day in April in Stamford13
15 hours of daylight per day in May in Stamford15
15 hours of daylight per day in June in Stamford15
15 hours of daylight per day in July in Stamford15
14 hours of daylight per day in August in Stamford14
12 hours of daylight per day in September in Stamford12
11 hours of daylight per day in October in Stamford11
10 hours of daylight per day in November in Stamford10
9 hours of daylight per day in December in Stamford9
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Stamford2
UV (maximum) index 2 (Low) in February in Stamford2
UV (maximum) index 4 (Moderate) in March in Stamford4
UV (maximum) index 6 (High) in April in Stamford6
UV (maximum) index 7 (High) in May in Stamford7
UV (maximum) index 8 (Very High) in June in Stamford8
UV (maximum) index 8 (Very High) in July in Stamford8
UV (maximum) index 8 (Very High) in August in Stamford8
UV (maximum) index 6 (High) in September in Stamford6
UV (maximum) index 4 (Moderate) in October in Stamford4
UV (maximum) index 2 (Low) in November in Stamford2
UV (maximum) index 1 (Low) in December in Stamford1

Rainfall in Stamford

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
11 days with some rainfall in January in Stamford11
10 days with some rainfall in February in Stamford10
11 days with some rainfall in March in Stamford11
11 days with some rainfall in April in Stamford11
11 days with some rainfall in May in Stamford11
11 days with some rainfall in June in Stamford11
9 days with some rainfall in July in Stamford9
9 days with some rainfall in August in Stamford9
8 days with some rainfall in September in Stamford8
8 days with some rainfall in October in Stamford8
11 days with some rainfall in November in Stamford11
12 days with some rainfall in December in Stamford12
Average monthly rainfall (inches)
3.9 inches monthly rainfall in January in Stamford3.9
3.5 inches monthly rainfall in February in Stamford3.5
4.6 inches monthly rainfall in March in Stamford4.6
4.9 inches monthly rainfall in April in Stamford4.9
5.0 inches monthly rainfall in May in Stamford5.0
3.7 inches monthly rainfall in June in Stamford3.7
3.9 inches monthly rainfall in July in Stamford3.9
4.6 inches monthly rainfall in August in Stamford4.6
3.9 inches monthly rainfall in September in Stamford3.9
3.9 inches monthly rainfall in October in Stamford3.9
4.8 inches monthly rainfall in November in Stamford4.8
4.5 inches monthly rainfall in December in Stamford4.5

More about Stamford

Stamford by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Connecticut (Stamford) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Stamford?

Stamford has a cold climate with hot summers and some rainfall in all months.

Stamford weather in January

Expect daytime maximum temperatures of 36°F in Stamford, Connecticut in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 3.9 inches of rainfall in the month, which might fall as snow.

  • 36°F maximum daytime temperature in January in Stamford36
    36°F max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in January in Stamford11
    11 days with some rainfall
  • 18°F minimum night-time temperature in January in Stamford18
    18°F min night temperature
  • 10 hours of daylight per day in January in Stamford10
    10 hours of daylight per day
  • No heat & humidity in January in Stamford0
    No heat & humidity
  • 3.9 inches monthly rainfall in January in Stamford3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Stamford2
    2 (Low) UV index

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Stamford weather in February

Expect daytime maximum temperatures of 39°F in Stamford, Connecticut in February based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 3.5 inches of rainfall in the month, which might fall as snow.

  • 39°F maximum daytime temperature in February in Stamford39
    39°F max day temperature
  • 6 hours of sunshine per day
  • 10 days with some rainfall in February in Stamford10
    10 days with some rainfall
  • 19°F minimum night-time temperature in February in Stamford19
    19°F min night temperature
  • 11 hours of daylight per day in February in Stamford11
    11 hours of daylight per day
  • No heat & humidity in February in Stamford0
    No heat & humidity
  • 3.5 inches monthly rainfall in February in Stamford3.5
    3.5 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in February in Stamford2
    2 (Low) UV index

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Stamford weather in March

Expect daytime maximum temperatures of 48°F in Stamford, Connecticut in March based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 4.6 inches of rainfall in the month.

  • 48°F maximum daytime temperature in March in Stamford48
    48°F max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in March in Stamford11
    11 days with some rainfall
  • 28°F minimum night-time temperature in March in Stamford28
    28°F min night temperature
  • 12 hours of daylight per day in March in Stamford12
    12 hours of daylight per day
  • No heat & humidity in March in Stamford0
    No heat & humidity
  • 4.6 inches monthly rainfall in March in Stamford4.6
    4.6 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in March in Stamford4
    4 (Moderate) UV index

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Stamford weather in April

Expect daytime maximum temperatures of 59°F in Stamford, Connecticut in April based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 4.9 inches of rainfall in the month.

  • 59°F maximum daytime temperature in April in Stamford59
    59°F max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in April in Stamford11
    11 days with some rainfall
  • 37°F minimum night-time temperature in April in Stamford37
    37°F min night temperature
  • 13 hours of daylight per day in April in Stamford13
    13 hours of daylight per day
  • No heat & humidity in April in Stamford0
    No heat & humidity
  • 4.9 inches monthly rainfall in April in Stamford4.9
    4.9 inches of monthly rainfall
  • UV (maximum) index 6 (High) in April in Stamford6
    6 (High) UV index

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Stamford weather in May

Expect daytime maximum temperatures of 70°F in Stamford, Connecticut in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 5.0 inches of rainfall in the month.

  • 70°F maximum daytime temperature in May in Stamford70
    70°F max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in May in Stamford11
    11 days with some rainfall
  • 46°F minimum night-time temperature in May in Stamford46
    46°F min night temperature
  • 15 hours of daylight per day in May in Stamford15
    15 hours of daylight per day
  • No heat & humidity in May in Stamford0
    No heat & humidity
  • 5.0 inches monthly rainfall in May in Stamford5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 7 (High) in May in Stamford7
    7 (High) UV index

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Stamford weather in June

Expect daytime maximum temperatures of 79°F in Stamford, Connecticut in June based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 3.7 inches of rainfall in the month.

  • 79°F maximum daytime temperature in June in Stamford79
    79°F max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in June in Stamford11
    11 days with some rainfall
  • 55°F minimum night-time temperature in June in Stamford55
    55°F min night temperature
  • 15 hours of daylight per day in June in Stamford15
    15 hours of daylight per day
  • Low heat & humidity in June in StamfordL
    Low heat & humidity
  • 3.7 inches monthly rainfall in June in Stamford3.7
    3.7 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in June in Stamford8
    8 (Very High) UV index

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Stamford weather in July

Expect daytime maximum temperatures of 84°F in Stamford, Connecticut in July based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.9 inches of rainfall in the month.

  • 84°F maximum daytime temperature in July in Stamford84
    84°F max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in July in Stamford9
    9 days with some rainfall
  • 61°F minimum night-time temperature in July in Stamford61
    61°F min night temperature
  • 15 hours of daylight per day in July in Stamford15
    15 hours of daylight per day
  • Moderate heat & humidity in July in StamfordM
    Moderate heat & humidity
  • 3.9 inches monthly rainfall in July in Stamford3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Stamford8
    8 (Very High) UV index

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Stamford weather in August

Expect daytime maximum temperatures of 82°F in Stamford, Connecticut in August based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 4.6 inches of rainfall in the month.

  • 82°F maximum daytime temperature in August in Stamford82
    82°F max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in August in Stamford9
    9 days with some rainfall
  • 59°F minimum night-time temperature in August in Stamford59
    59°F min night temperature
  • 14 hours of daylight per day in August in Stamford14
    14 hours of daylight per day
  • Moderate heat & humidity in August in StamfordM
    Moderate heat & humidity
  • 4.6 inches monthly rainfall in August in Stamford4.6
    4.6 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Stamford8
    8 (Very High) UV index

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Stamford weather in September

Expect daytime maximum temperatures of 73°F in Stamford, Connecticut in September based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 3.9 inches of rainfall in the month.

  • 73°F maximum daytime temperature in September in Stamford73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in September in Stamford8
    8 days with some rainfall
  • 52°F minimum night-time temperature in September in Stamford52
    52°F min night temperature
  • 12 hours of daylight per day in September in Stamford12
    12 hours of daylight per day
  • No heat & humidity in September in Stamford0
    No heat & humidity
  • 3.9 inches monthly rainfall in September in Stamford3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Stamford6
    6 (High) UV index

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Stamford weather in October

Expect daytime maximum temperatures of 64°F in Stamford, Connecticut in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 3.9 inches of rainfall in the month.

  • 64°F maximum daytime temperature in October in Stamford64
    64°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in October in Stamford8
    8 days with some rainfall
  • 41°F minimum night-time temperature in October in Stamford41
    41°F min night temperature
  • 11 hours of daylight per day in October in Stamford11
    11 hours of daylight per day
  • No heat & humidity in October in Stamford0
    No heat & humidity
  • 3.9 inches monthly rainfall in October in Stamford3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in October in Stamford4
    4 (Moderate) UV index

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Stamford weather in November

Expect daytime maximum temperatures of 54°F in Stamford, Connecticut in November based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 4.8 inches of rainfall in the month.

  • 54°F maximum daytime temperature in November in Stamford54
    54°F max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in November in Stamford11
    11 days with some rainfall
  • 34°F minimum night-time temperature in November in Stamford34
    34°F min night temperature
  • 10 hours of daylight per day in November in Stamford10
    10 hours of daylight per day
  • No heat & humidity in November in Stamford0
    No heat & humidity
  • 4.8 inches monthly rainfall in November in Stamford4.8
    4.8 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in November in Stamford2
    2 (Low) UV index

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Stamford weather in December

Expect daytime maximum temperatures of 41°F in Stamford, Connecticut in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 4.5 inches of rainfall in the month, which might fall as snow.

  • 41°F maximum daytime temperature in December in Stamford41
    41°F max day temperature
  • 4 hours of sunshine per day
  • 12 days with some rainfall in December in Stamford12
    12 days with some rainfall
  • 23°F minimum night-time temperature in December in Stamford23
    23°F min night temperature
  • 9 hours of daylight per day in December in Stamford9
    9 hours of daylight per day
  • No heat & humidity in December in Stamford0
    No heat & humidity
  • 4.5 inches monthly rainfall in December in Stamford4.5
    4.5 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Stamford1
    1 (Low) UV index

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More about Stamford

Stamford by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Connecticut

  • Save EXTRA 5% on airport transfers worldwide
  • Book private taxis & shuttle buses with discount code
  • Enter in coupon box on 'Reservations' page
Show discount codeShow discount code ******WEB

Expires at 23:59 on Thursday 31st Dec 2026

The climate guide for Connecticut (Stamford) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Compare Stamford weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Stamford, Connecticut, USA and the UK (London).

Maximum daytime temperature (°F)

Stamford, Connecticut, USA
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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