Jamestown, ND

Climate overview — based on NOAA 1991-2020 normals from JAMESTOWN STATE HOSP, ND US.

Dfb Warm-summer humid continental climate 5b USDA hardiness Zone 5b

Year-round temperatures (°F)

20° 40° 60° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Jamestown has an annual average temperature of 41.2°F with about 21.1 inches of precipitation per year and 46.1 inches of snow. The warmest month is July (average high 81.6°F), and the coldest is January (average low 0.4°F). June is typically the wettest month (3.62 in) and February the driest (0.46 in). Snow typically falls from October through May.

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
60.7°F
warmest to coldest month
Heating need
8,799
Cooling need
249

Best time to visit Jamestown

Full guide →

Climate change signal

All-time records →

25 of 366 (6.8%) of Jamestown's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s
7
1900s
41
1910s
21
1920s
23
1930s
71
1940s
30
1950s
29
1960s
20
1970s
23
1980s
30
1990s
22
2000s
14
2010s
20
2020s
15

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 18.4°F 0.4°F 9.4°F 0.50 in 11.4 in 6
February 23.0°F 4.2°F 13.6°F 0.46 in 7.4 in 6
March 35.9°F 16.7°F 26.3°F 0.74 in 6.5 in 5
April 52.7°F 29.4°F 41.0°F 1.22 in 2.5 in 8
May 66.9°F 42.5°F 54.7°F 3.44 in 0.4 in 12
June 76.5°F 53.9°F 65.2°F 3.62 in 13
July 81.6°F 58.5°F 70.1°F 3.59 in 11
August 80.3°F 55.7°F 68.0°F 2.28 in 8
September 71.2°F 46.2°F 58.7°F 2.24 in 8
October 54.8°F 33.3°F 44.0°F 1.89 in 1.9 in 7
November 37.5°F 19.3°F 28.4°F 0.52 in 4.2 in 6
December 23.6°F 7.6°F 15.6°F 0.62 in 11.8 in 6

Climate twins of Jamestown

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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