Colorado · county areal climate 1951–2025

Boulder County, CO

A 20.5" / 45.5°F normal · 2025 ran 87% of normal precipitation.
2026 so far · through Jul 25: This area is at 66% (8.54") of the 1996–2025 to-date normal — the 4th driest start of 76 years. Temperature +4.2°F vs normal. U.S. year-to-date →

Normal (1996–2025)

20.5in
annual precipitation · 45.5°F

2025 vs Normal

87%
17.8" · 46.4°F (+0.9 vs normal)

Wettest Year

28.4in
1957

Driest Year

12.8in
1954

Biggest Rain Day

2.82in
Apr 2 · 1957

Warmest Year

47.3°F
2012

Record

1951–2025
75 complete years · NOAA nClimGrid

Monthly Climate

28°
J
29°
F
36°
M
42°
A
50°
M
61°
J
67°
J
64°
A
58°
S
46°
O
36°
N
29°
D
—— normal temperature (°F) · ▮ normal precipitation (in) · 1996–2025
Areal nClimGrid averages (NOAA/NCEI) over the whole area — an average across the region, not a single station. Separate from the station records.

Nearby

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