Jamestown weather by month

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

Temperature in Jamestown (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
-9°C maximum daytime temperature in January in Jamestown-9
-5°C maximum daytime temperature in February in Jamestown-5
2°C maximum daytime temperature in March in Jamestown2
12°C maximum daytime temperature in April in Jamestown12
19°C maximum daytime temperature in May in Jamestown19
25°C maximum daytime temperature in June in Jamestown25
29°C maximum daytime temperature in July in Jamestown29
28°C maximum daytime temperature in August in Jamestown28
21°C maximum daytime temperature in September in Jamestown21
14°C maximum daytime temperature in October in Jamestown14
3°C maximum daytime temperature in November in Jamestown3
-6°C maximum daytime temperature in December in Jamestown-6
Min temperature (night-time)
-20°C minimum night-time temperature in January in Jamestown-20
-16°C minimum night-time temperature in February in Jamestown-16
-9°C minimum night-time temperature in March in Jamestown-9
0°C minimum night-time temperature in April in Jamestown0
6°C minimum night-time temperature in May in Jamestown6
12°C minimum night-time temperature in June in Jamestown12
15°C minimum night-time temperature in July in Jamestown15
13°C minimum night-time temperature in August in Jamestown13
7°C minimum night-time temperature in September in Jamestown7
1°C minimum night-time temperature in October in Jamestown1
-7°C minimum night-time temperature in November in Jamestown-7
-16°C minimum night-time temperature in December in Jamestown-16
Heat & Humidity
No heat & humidity in January in Jamestown0
No heat & humidity in February in Jamestown0
No heat & humidity in March in Jamestown0
No heat & humidity in April in Jamestown0
No heat & humidity in May in Jamestown0
No heat & humidity in June in Jamestown0
Moderate heat & humidity in July in JamestownM
Low heat & humidity in August in JamestownL
No heat & humidity in September in Jamestown0
No heat & humidity in October in Jamestown0
No heat & humidity in November in Jamestown0
No heat & humidity in December in Jamestown0

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

Sunshine & UV index in Jamestown

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
9 hours of daylight per day in January in Jamestown9
10 hours of daylight per day in February in Jamestown10
12 hours of daylight per day in March in Jamestown12
14 hours of daylight per day in April in Jamestown14
15 hours of daylight per day in May in Jamestown15
16 hours of daylight per day in June in Jamestown16
15 hours of daylight per day in July in Jamestown15
14 hours of daylight per day in August in Jamestown14
13 hours of daylight per day in September in Jamestown13
11 hours of daylight per day in October in Jamestown11
9 hours of daylight per day in November in Jamestown9
9 hours of daylight per day in December in Jamestown9
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Jamestown1
UV (maximum) index 2 (Low) in February in Jamestown2
UV (maximum) index 3 (Moderate) in March in Jamestown3
UV (maximum) index 5 (Moderate) in April in Jamestown5
UV (maximum) index 6 (High) in May in Jamestown6
UV (maximum) index 8 (Very High) in June in Jamestown8
UV (maximum) index 8 (Very High) in July in Jamestown8
UV (maximum) index 7 (High) in August in Jamestown7
UV (maximum) index 5 (Moderate) in September in Jamestown5
UV (maximum) index 3 (Moderate) in October in Jamestown3
UV (maximum) index 1 (Low) in November in Jamestown1
UV (maximum) index 1 (Low) in December in Jamestown1

Rainfall in Jamestown

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
7 days with some rainfall in January in Jamestown7
7 days with some rainfall in February in Jamestown7
7 days with some rainfall in March in Jamestown7
8 days with some rainfall in April in Jamestown8
10 days with some rainfall in May in Jamestown10
11 days with some rainfall in June in Jamestown11
9 days with some rainfall in July in Jamestown9
9 days with some rainfall in August in Jamestown9
7 days with some rainfall in September in Jamestown7
6 days with some rainfall in October in Jamestown6
6 days with some rainfall in November in Jamestown6
7 days with some rainfall in December in Jamestown7
Average monthly rainfall (mm)
14 mm monthly rainfall in January in Jamestown14
10 mm monthly rainfall in February in Jamestown10
20 mm monthly rainfall in March in Jamestown20
37 mm monthly rainfall in April in Jamestown37
57 mm monthly rainfall in May in Jamestown57
90 mm monthly rainfall in June in Jamestown90
75 mm monthly rainfall in July in Jamestown75
53 mm monthly rainfall in August in Jamestown53
44 mm monthly rainfall in September in Jamestown44
25 mm monthly rainfall in October in Jamestown25
14 mm monthly rainfall in November in Jamestown14
11 mm monthly rainfall in December in Jamestown11

More about Jamestown

Jamestown by month

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

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The climate guide for North Dakota (Jamestown) 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 Jamestown?

Jamestown has a cold climate with warm summers and some rainfall in all months.

Jamestown weather in January

Expect daytime maximum temperatures of -9°C in Jamestown, North Dakota in January based on long-term weather averages. There are 5 hours of sunshine per day on average, which might fall as snow.

  • -9°C maximum daytime temperature in January in Jamestown-9
    -9°C max day temperature
  • 5 hours of sunshine per day
  • 7 days with some rainfall in January in Jamestown7
    7 days with some rainfall
  • -20°C minimum night-time temperature in January in Jamestown-20
    -20°C min night temperature
  • 9 hours of daylight per day in January in Jamestown9
    9 hours of daylight per day
  • No heat & humidity in January in Jamestown0
    No heat & humidity
  • 14 mm monthly rainfall in January in Jamestown14
    14 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Jamestown1
    1 (Low) UV index

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Jamestown weather in February

Expect daytime maximum temperatures of -5°C in Jamestown, North Dakota in February based on long-term weather averages. There are 5 hours of sunshine per day on average, which might fall as snow.

  • -5°C maximum daytime temperature in February in Jamestown-5
    -5°C max day temperature
  • 5 hours of sunshine per day
  • 7 days with some rainfall in February in Jamestown7
    7 days with some rainfall
  • -16°C minimum night-time temperature in February in Jamestown-16
    -16°C min night temperature
  • 10 hours of daylight per day in February in Jamestown10
    10 hours of daylight per day
  • No heat & humidity in February in Jamestown0
    No heat & humidity
  • 10 mm monthly rainfall in February in Jamestown10
    10 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in February in Jamestown2
    2 (Low) UV index

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Jamestown weather in March

Expect daytime maximum temperatures of 2°C in Jamestown, North Dakota in March based on long-term weather averages. There are 7 hours of sunshine per day on average, which might fall as snow.

  • 2°C maximum daytime temperature in March in Jamestown2
    2°C max day temperature
  • 7 hours of sunshine per day
  • 7 days with some rainfall in March in Jamestown7
    7 days with some rainfall
  • -9°C minimum night-time temperature in March in Jamestown-9
    -9°C min night temperature
  • 12 hours of daylight per day in March in Jamestown12
    12 hours of daylight per day
  • No heat & humidity in March in Jamestown0
    No heat & humidity
  • 20 mm monthly rainfall in March in Jamestown20
    20 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in March in Jamestown3
    3 (Moderate) UV index

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Jamestown weather in April

Expect daytime maximum temperatures of 12°C in Jamestown, North Dakota in April based on long-term weather averages. There are 8 hours of sunshine per day on average.

  • 12°C maximum daytime temperature in April in Jamestown12
    12°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in April in Jamestown8
    8 days with some rainfall
  • 0°C minimum night-time temperature in April in Jamestown0
    0°C min night temperature
  • 14 hours of daylight per day in April in Jamestown14
    14 hours of daylight per day
  • No heat & humidity in April in Jamestown0
    No heat & humidity
  • 37 mm monthly rainfall in April in Jamestown37
    37 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in April in Jamestown5
    5 (Moderate) UV index

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Jamestown weather in May

Expect daytime maximum temperatures of 19°C in Jamestown, North Dakota in May based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 57 mm of rainfall in the month.

  • 19°C maximum daytime temperature in May in Jamestown19
    19°C max day temperature
  • 9 hours of sunshine per day
  • 10 days with some rainfall in May in Jamestown10
    10 days with some rainfall
  • 6°C minimum night-time temperature in May in Jamestown6
    6°C min night temperature
  • 15 hours of daylight per day in May in Jamestown15
    15 hours of daylight per day
  • No heat & humidity in May in Jamestown0
    No heat & humidity
  • 57 mm monthly rainfall in May in Jamestown57
    57 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in Jamestown6
    6 (High) UV index

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Jamestown weather in June

Expect daytime maximum temperatures of 25°C in Jamestown, North Dakota in June based on long-term weather averages. There are 10 hours of sunshine per day on average with 11 days with some rainfall and typically 90 mm of rainfall in the month.

  • 25°C maximum daytime temperature in June in Jamestown25
    25°C max day temperature
  • 10 hours of sunshine per day
  • 11 days with some rainfall in June in Jamestown11
    11 days with some rainfall
  • 12°C minimum night-time temperature in June in Jamestown12
    12°C min night temperature
  • 16 hours of daylight per day in June in Jamestown16
    16 hours of daylight per day
  • No heat & humidity in June in Jamestown0
    No heat & humidity
  • 90 mm monthly rainfall in June in Jamestown90
    90 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in June in Jamestown8
    8 (Very High) UV index

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Jamestown weather in July

Expect daytime maximum temperatures of 29°C in Jamestown, North Dakota in July based on long-term weather averages. There are 11 hours of sunshine per day on average with typically 75 mm of rainfall in the month.

  • 29°C maximum daytime temperature in July in Jamestown29
    29°C max day temperature
  • 11 hours of sunshine per day
  • 9 days with some rainfall in July in Jamestown9
    9 days with some rainfall
  • 15°C minimum night-time temperature in July in Jamestown15
    15°C min night temperature
  • 15 hours of daylight per day in July in Jamestown15
    15 hours of daylight per day
  • Moderate heat & humidity in July in JamestownM
    Moderate heat & humidity
  • 75 mm monthly rainfall in July in Jamestown75
    75 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Jamestown8
    8 (Very High) UV index

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Jamestown weather in August

Expect daytime maximum temperatures of 28°C in Jamestown, North Dakota in August based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 53 mm of rainfall in the month.

  • 28°C maximum daytime temperature in August in Jamestown28
    28°C max day temperature
  • 10 hours of sunshine per day
  • 9 days with some rainfall in August in Jamestown9
    9 days with some rainfall
  • 13°C minimum night-time temperature in August in Jamestown13
    13°C min night temperature
  • 14 hours of daylight per day in August in Jamestown14
    14 hours of daylight per day
  • Low heat & humidity in August in JamestownL
    Low heat & humidity
  • 53 mm monthly rainfall in August in Jamestown53
    53 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Jamestown7
    7 (High) UV index

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Jamestown weather in September

Expect daytime maximum temperatures of 21°C in Jamestown, North Dakota in September based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 44 mm of rainfall in the month.

  • 21°C maximum daytime temperature in September in Jamestown21
    21°C max day temperature
  • 8 hours of sunshine per day
  • 7 days with some rainfall in September in Jamestown7
    7 days with some rainfall
  • 7°C minimum night-time temperature in September in Jamestown7
    7°C min night temperature
  • 13 hours of daylight per day in September in Jamestown13
    13 hours of daylight per day
  • No heat & humidity in September in Jamestown0
    No heat & humidity
  • 44 mm monthly rainfall in September in Jamestown44
    44 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Jamestown5
    5 (Moderate) UV index

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Jamestown weather in October

Expect daytime maximum temperatures of 14°C in Jamestown, North Dakota in October based on long-term weather averages. There are 6 hours of sunshine per day on average.

  • 14°C maximum daytime temperature in October in Jamestown14
    14°C max day temperature
  • 6 hours of sunshine per day
  • 6 days with some rainfall in October in Jamestown6
    6 days with some rainfall
  • 1°C minimum night-time temperature in October in Jamestown1
    1°C min night temperature
  • 11 hours of daylight per day in October in Jamestown11
    11 hours of daylight per day
  • No heat & humidity in October in Jamestown0
    No heat & humidity
  • 25 mm monthly rainfall in October in Jamestown25
    25 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in Jamestown3
    3 (Moderate) UV index

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Jamestown weather in November

Expect daytime maximum temperatures of 3°C in Jamestown, North Dakota in November based on long-term weather averages. There are 4 hours of sunshine per day on average, which might fall as snow.

  • 3°C maximum daytime temperature in November in Jamestown3
    3°C max day temperature
  • 4 hours of sunshine per day
  • 6 days with some rainfall in November in Jamestown6
    6 days with some rainfall
  • -7°C minimum night-time temperature in November in Jamestown-7
    -7°C min night temperature
  • 9 hours of daylight per day in November in Jamestown9
    9 hours of daylight per day
  • No heat & humidity in November in Jamestown0
    No heat & humidity
  • 14 mm monthly rainfall in November in Jamestown14
    14 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Jamestown1
    1 (Low) UV index

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Jamestown weather in December

Expect daytime maximum temperatures of -6°C in Jamestown, North Dakota in December based on long-term weather averages. There are 4 hours of sunshine per day on average, which might fall as snow.

  • -6°C maximum daytime temperature in December in Jamestown-6
    -6°C max day temperature
  • 4 hours of sunshine per day
  • 7 days with some rainfall in December in Jamestown7
    7 days with some rainfall
  • -16°C minimum night-time temperature in December in Jamestown-16
    -16°C min night temperature
  • 9 hours of daylight per day in December in Jamestown9
    9 hours of daylight per day
  • No heat & humidity in December in Jamestown0
    No heat & humidity
  • 11 mm monthly rainfall in December in Jamestown11
    11 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Jamestown1
    1 (Low) UV index

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More about Jamestown

Jamestown by month

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

Recommended for North Dakota

  • 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 North Dakota (Jamestown) 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 Jamestown weather with the UK

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

Maximum daytime temperature (°C)

Jamestown, North Dakota, USA
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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