United States · 1991–2020

Best time to visit
Denver.

September leads for comfortable weather in Denver: typically 27.9°C by day, 10°C at night, with 30 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27.9°C

Typical low10°C

Rain in September30 mm

Comfort

September

September · May · June

76climate match

Beach

June

June · July · August

71climate match

Outdoors

October

October · May · April

86climate match

The weakest month is December, scoring 9 against September’s 76 — days reach only 8.4°C, 16° below the 24°C the score treats as ideal, and nights drop to -7.1°C.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

129.3° / -6.7°

Feb

139.3° / -6.4°

Mar

3814.6° / -1.6°

Apr

5218.1° / 1.8°

May

7322.8° / 7°

Jun

7330.1° / 12.6°

Jul

6133.5° / 16.4°

Aug

6932.3° / 14.9°

Sep

7627.9° / 10°

Oct

6319.8° / 2.5°

Nov

3513.9° / -2.8°

Dec

98.4° / -7.1°

Monthly climate evidence for Denver — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9.3°C	-6.7°C	11 mm	2.7	9 h 38	12	Good coverage
February	9.3°C	-6.4°C	13 mm	3.2	10 h 38	13	Good coverage
March	14.6°C	-1.6°C	28 mm	4.1	11 h 49	38	Good coverage
April	18.1°C	1.8°C	49 mm	6.1	13 h 12	52	Good coverage
May	22.8°C	7°C	66 mm	7.7	14 h 20	73	Good coverage
June	30.1°C	12.6°C	39 mm	5.2	14 h 58	73	Good coverage
July	33.5°C	16.4°C	50 mm	5.8	14 h 43	61	Good coverage
August	32.3°C	14.9°C	48 mm	5.6	13 h 44	69	Good coverage
September	27.9°C	10°C	30 mm	5	12 h 24	76	Good coverage
October	19.8°C	2.5°C	28 mm	3.9	11 h 05	63	Good coverage
November	13.9°C	-2.8°C	14 mm	2.8	9 h 56	35	Good coverage
December	8.4°C	-7.1°C	11 mm	2.7	9 h 22	9	Good coverage

Records at DENVER WATER DEPT, 1997–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C28 Jan 2015	-26.1°C6 Jan 2017	13 mm12 Jan 2019	31 mm2019 · driest 2 mm in 2011	29
February	25.6°C17 Feb 2017	-25.6°C3 Feb 2011	27 mm4 Feb 2024	64 mm2015 · driest 0 mm in 2026	29
March	32.2°C22 Mar 2026	-18.9°C3 Mar 2002	40 mm14 Mar 2024	82 mm2003 · driest 0 mm in 2012	27
April	32.8°C25 Apr 2012	-13.3°C10 Apr 2013	51 mm25 Apr 2007	148 mm1999 · driest 1 mm in 2022	29
May	37.2°C30 May 2000	-6.7°C2 May 2013	74 mm12 May 2023	162 mm2015 · driest 20 mm in 2005	29
June	41.7°C26 Jun 2012	2.2°C8 Jun 2007	46 mm22 Jun 2023	170 mm2015 · driest 3 mm in 2010	29
July	42.2°C21 Jul 2005	9.4°C1 Jul 2017	48 mm28 Jul 2007	123 mm2011 · driest 4 mm in 2008	29
August	40.0°C1 Aug 2002	4.4°C20 Aug 2016	89 mm19 Aug 2004	141 mm2004 · driest 7 mm in 2011	28
September	38.9°C7 Sep 2020	-5.6°C24 Sep 2000	29 mm24 Sep 2025	103 mm2013 · driest 2 mm in 2016	28
October	32.2°C3 Oct 2024	-15.6°C27 Oct 2020	35 mm10 Oct 2005	67 mm2005 · driest 1 mm in 2024	28
November	29.4°C3 Nov 2025	-22.2°C13 Nov 2014	24 mm5 Nov 2015	55 mm2015 · driest 0 mm in 2006	29
December	25.6°C23 Dec 2025	-25.0°C31 Dec 2014	33 mm29 Dec 2022	37 mm2007 · driest 0 mm in 2002	29

Typical days per month at DENVER WATER DEPT, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	<1	4
February	<1	0	26	<1	4
March	2	0	20	<1	4
April	6	<1	10	2	3
May	14	5	2	3	<1
June	26	16	0	1	0
July	30	26	0	2	0
August	29	24	0	1	0
September	21	13	<1	1	0
October	9	2	9	<1	1
November	2	0	21	<1	3
December	0	0	28	<1	4

How often, not how much — every day in DENVER WATER DEPT’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	4%	9%	<1%	3%	5.5–11.2°C
February	8%	12%	<1%	5%	6.8–13.6°C
March	28%	13%	4%	7%	12.0–17.9°C
April	44%	19%	5%	18%	15.8–20.5°C
May	61%	25%	8%	25%	20.4–25.2°C
June	81%	18%	4%	17%	27.1–32.2°C
July	82%	18%	5%	16%	31.4–35.5°C
August	83%	18%	4%	11%	30.4–33.9°C
September	81%	15%	4%	11%	26.2–30.6°C
October	56%	12%	3%	6%	17.2–23.3°C
November	25%	9%	1%	4%	10.4–17.2°C
December	5%	8%	<1%	3%	6.5–11.9°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1998Each stripe is one year’s mean temperature against the 26-year average. Warmest: 2024. Coolest: 2007.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5419384
NOAA station: USC00052223 · DENVER WATER DEPT
Station distance: 2.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 39.74°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from DENVER WATER DEPT is what differs

Glendale→North Washington→Alamo Placita→Utah Junction→Zuni→Five Points→

Or put two places side by side: Denver vs Glendale

Best time to visitDenver.