ClimateAverages

Grand Forks Climate

North Dakota, United States of America · population 57,011 · 214 weather stations within 200 km · records 1819 to 2025

Average annual daytime high
10.3°C
Warmest month · July
27.6°C
Typical daytime high
Coldest month · January
-21.6°C
Typical overnight low

Grand Forks has an average annual daytime high of 10.3°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 27.6°C, and its coldest is January, with overnight lows near -21.6°C.

Month by month averages

MonthAvg highAvg low
January-10.9°C-21.6°CColdest
February-6.6°C-17.9°C
March0.4°C-10.7°C
April11.3°C-1.0°C
May20.2°C5.5°C
June24.7°C11.1°C
July27.6°C13.6°CWarmest
August27.1°C12.5°C
September20.8°C7.0°C
October13.8°C1.0°C
November2.2°C-7.6°C
December-6.4°C-16.3°C

Temperature range across the year

-24°-10°3°16°30°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2011
+3.8°C vs. 1951–1980
Coldest year on record
1842
-3.2°C vs. 1951–1980

These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.

Is Grand Forks getting hotter?

Since 1900, Grand Forks's average temperature has risen by +2.6°C. Compared to the earliest station records that begin in 1819, warming totals +2.1°C.

3.4°4.1°4.9°5.7°6.4°1951–1980 baseline190019251950197520002025

20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.

Best time to visit
May to September

Daytime highs sit within a comfortable 15°C to 26°C range.

FAQ

What is the average temperature in Grand Forks?

Grand Forks's average annual daytime high is 10.3°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 27.6°C, and the coldest is January, with lows averaging -21.6°C.

What is the warmest month in Grand Forks?

July is the warmest month in Grand Forks, with typical daytime highs of 27.6°C.

What is the hottest year on record for Grand Forks?

2011 is the hottest year on record for Grand Forks, running +3.8°C above the 1951 to 1980 baseline.

Is Grand Forks getting hotter?

Yes. Since 1900, Grand Forks has warmed by roughly +2.6°C.

When is the best time to visit Grand Forks?

May to September typically offers the most comfortable daytime highs, in the 15°C to 26°C range.

Nearby cities

Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.