ClimateAverages

Greeley Climate

Colorado, United States of America · population 100,883 · 376 weather stations within 200 km · records 1849 to 2025

Average annual daytime high
18.5°C
Warmest month · July
32.7°C
Typical daytime high
Coldest month · January
-11.3°C
Typical overnight low

Greeley has an average annual daytime high of 18.5°C, based on the 1951 to 1980 baseline. Its warmest month is July, when highs typically reach 32.7°C, and its coldest is January, with overnight lows near -11.3°C.

Month by month averages

MonthAvg highAvg low
January4.5°C-11.3°CColdest
February8.2°C-7.9°C
March11.8°C-5.0°C
April17.7°C0.2°C
May22.9°C5.9°C
June28.8°C10.6°C
July32.7°C13.9°CWarmest
August31.4°C12.9°C
September26.6°C7.6°C
October20.2°C1.4°C
November11.2°C-5.0°C
December6.6°C-8.9°C

Temperature range across the year

-13°-1°11°23°35°JanFebMarAprMayJunJulAugSepOctNovDec
Daytime high Overnight low
Hottest year on record
2011
+1.9°C vs. 1951–1980
Coldest year on record
1849
-3.3°C vs. 1951–1980

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

Is Greeley getting hotter?

Since 1900, Greeley's average temperature has risen by +1.6°C. Compared to the earliest station records that begin in 1849, warming totals +1.9°C.

9.1°9.6°10.1°10.7°11.2°1951–1980 baseline190019251950197520002025

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

Best time to visit
April to October

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

FAQ

What is the average temperature in Greeley?

Greeley's average annual daytime high is 18.5°C, based on the 1951 to 1980 baseline period. The warmest month is July, with highs averaging 32.7°C, and the coldest is January, with lows averaging -11.3°C.

What is the warmest month in Greeley?

July is the warmest month in Greeley, with typical daytime highs of 32.7°C.

What is the hottest year on record for Greeley?

2011 is the hottest year on record for Greeley, running +1.9°C above the 1951 to 1980 baseline.

Is Greeley getting hotter?

Yes. Since 1900, Greeley has warmed by roughly +1.6°C.

When is the best time to visit Greeley?

April to October 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.