Everything below is collected in one spot so you do not have to cross-check Denver climate: monthly averages by hand. The gap between Dec and Jul is 24.4 C here: -2.1 C against 22.3 C. No month dominates: the wettest is Jul at 2.00 mm/day, the driest Jan at 0.55 mm/day. Taken together that is roughly 438 mm of rain a year for the grid cell. The same build that regenerates the sitemap refreshes these values, and unchanged pages are left untouched. Exact monthly values are in the table; links below cover adjacent locations and years.
Annual mean temperature 9.1 C
Warmest month Jul (22.3 C)
Coldest month Dec (-2.1 C)
Wettest month Jul (2.00 mm/day)
All-time record high 37.1 C
All-time record low -25.2 C
Annual precipitation 438 mm / year
Coordinates 39.73915, -104.9847
Population 729,019
Average monthly temperature and rainfall in Denver
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-1.7
0.55
17.9
-20.3
Feb
-1.4
0.76
19.0
-25.2
Mar
3.2
1.10
25.2
-18.2
Apr
7.2
1.69
28.0
-13.0
May
12.5
1.87
33.0
-8.1
Jun
19.4
1.41
36.9
0.6
Jul
22.3
2.00
37.1
7.6
Aug
20.7
1.68
36.6
5.2
Sep
16.4
1.19
34.3
-3.9
Oct
8.7
0.97
28.3
-15.7
Nov
2.8
0.60
23.1
-17.6
Dec
-2.1
0.60
17.5
-20.8
What the Denver climate table shows
Values are multi-decadal climatological averages for the 39.73915, -104.9847 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
How much rain is 2.00 mm/day in a month?
Rain is recorded as a daily mean, so 2.00 mm/day is roughly 61 mm across a 30-day month.
Does Denver get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.