Denver weather in May: Denver, Colorado: normal highs, lows, rain and records for May

Denver in May has a normal high of 71°F and a normal low of 44°F, a daily mean of 57°F, rising from 65°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 10 days in a normal May, 2.16 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 22°C and low of 6°C, 55 mm of precipitation in May.

NOAA stationDenver International Airport
Station IDUSW00003017
Location39.83°N 104.66°W
Elevation5,414 ft (1,650 m)
From the center13 miles
Population729,019

Jan 45° 19°
Feb 46° 20°
Mar 56° 28°
Apr 62° 34°
May 71° 44°
Jun 83° 53°
Jul 90° 60°
Aug 88° 58°
Sep 80° 50°
Oct 65° 37°
Nov 53° 26°
Dec 44° 18°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Denver in May?

The normal high is 71°F and the normal low 44°F, for a daily mean of 57.4°F. May is 9.6°F warmer than April and 10.8°F cooler than June. May is the 5th warmest month of the year in Denver and the wettest. Across the month the normal high rises 13°F, from 65°F on May 1 to 78°F on May 31. From one year to the next May's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Mays in three average between 55°F and 60°F.

Denver in May, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 33%).

Normal high and low on five days of May, with the chance of precipitation
Day	High	Low	Chance of 0.01 in	Chance of 0.10 in
May 1	65°F	38°F	32%	16%
May 8	68°F	41°F	33%	17%
May 15	71°F	43°F	33%	17%
May 22	74°F	46°F	33%	17%
May 31	78°F	49°F	32%	17%

Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)

Denver: NOAA 1991-2020 daily normals for each day of May
Day	High	Low	Chance of 0.01 in	Chance of 0.10 in	Daylight
May 1	65°F	38°F	32%	16%	13 h 50 min
May 2	65°F	38°F	32%	16%	13 h 50 min
May 3	66°F	39°F	32%	16%	14 h
May 4	66°F	39°F	32%	17%	14 h
May 5	66°F	40°F	32%	17%	14 h
May 6	67°F	40°F	32%	17%	14 h
May 7	67°F	40°F	32%	17%	14 h
May 8	68°F	41°F	33%	17%	14 h 10 min
May 9	68°F	41°F	33%	17%	14 h 10 min
May 10	69°F	42°F	33%	17%	14 h 10 min
May 11	69°F	42°F	33%	17%	14 h 10 min
May 12	69°F	42°F	33%	17%	14 h 10 min
May 13	70°F	43°F	33%	17%	14 h 20 min
May 14	70°F	43°F	33%	17%	14 h 20 min
May 15	71°F	43°F	33%	17%	14 h 20 min
May 16	71°F	44°F	33%	17%	14 h 20 min
May 17	72°F	44°F	33%	17%	14 h 20 min
May 18	72°F	45°F	33%	17%	14 h 30 min
May 19	73°F	45°F	33%	17%	14 h 30 min
May 20	73°F	45°F	33%	17%	14 h 30 min
May 21	73°F	46°F	33%	17%	14 h 30 min
May 22	74°F	46°F	33%	17%	14 h 30 min
May 23	74°F	46°F	33%	17%	14 h 30 min
May 24	75°F	47°F	33%	17%	14 h 40 min
May 25	75°F	47°F	33%	17%	14 h 40 min
May 26	76°F	47°F	33%	17%	14 h 40 min
May 27	76°F	48°F	32%	17%	14 h 40 min
May 28	77°F	48°F	32%	17%	14 h 40 min
May 29	77°F	48°F	32%	17%	14 h 40 min
May 30	77°F	48°F	32%	17%	14 h 40 min
May 31	78°F	49°F	32%	17%	14 h 50 min

Normal high: 71°FMay average
Normal low: 44°FMay average
Precipitation: 2.16 inmonth total
Days with precipitation: 100.01 inch or more
Days at 90°F or more: 1
Nights at 32°F or colder: 3
Daylight: 13 h 50 min to 14 h 50 minMay 1 to May 31
Days at 70°F or more: 18
Days at 80°F or more: 7
Sunshine: 76%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00003017; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Denver in May?

On a given May day the chance of 0.01 inch or more is 32% on average, highest around May 18 (33%). In all, 2.16 in falls on 10 days of a normal May.

In a normal May in Denver, 1 days reach 90°F and 3 nights fall to freezing.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003017.

How humid and windy is Denver in May?

At 3 p.m. the normal temperature is 74°F with 30% relative humidity and a dew point of 40°F; at 6 a.m. it is 54°F with 67% humidity. The wind averages 10.3 mph, most often from the east in the afternoon. A dew point under 50°F feels dry.

A normal May day at the station, hour by hour (local standard time)
Time	Temperature	Dew point	Humidity	Wind	Clear or few clouds
6 a.m.	54°F	43°F	67%	8.4 mph	–
9 a.m.	65°F	43°F	45%	8.0 mph	–
noon	72°F	41°F	32%	10.0 mph	–
3 p.m.	74°F	40°F	30%	12.6 mph	–
6 p.m.	69°F	42°F	38%	12.5 mph	–
9 p.m.	60°F	43°F	55%	10.6 mph	–

Source: NOAA NCEI 1991-2020 hourly normals, station USW00003017. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).

What are the records for May in Denver?

The warmest May temperature on Denver's official record (since 1872) is 95°F, on May 26, 1942; the coldest is 19°F, on May 3, 1907. The wettest May brought 8.57 in (1876); the snowiest, 15.5 inches (1898).

The May mean against the 1991-2020 normal of 57.4°F: 2021 56.1°F (−1.3), 2022 56.8°F (−0.6), 2023 59.4°F (+2.0), 2024 56.9°F (−0.5), 2025 57.7°F (+0.3), 2026 57.9°F (+0.5). 3 of 6 ran warmer than normal.

Denver: May in recent years against the 1991-2020 normal
May	Mean	Against normal	Precip.
2021	56.1°F	−1.3°F	3.65 in
2022	56.8°F	−0.6°F	2.59 in
2023	59.4°F	+2.0°F	5.53 in
2024	56.9°F	−0.5°F	1.70 in
2025	57.7°F	+0.3°F	3.57 in
2026	57.9°F	+0.5°F	1.63 in

Source: records: ACIS, NWS threaded record DENthr; recent months: ACIS, station USW00003017. Records and recent months use complete months only.

How does May in Denver compare across Colorado?

Across the 125 places PlainClimate covers in Colorado, May normal highs run from 54°F in Leadville to 80°F in Lamar; Denver's is 71°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

How warm is Denver in May?

Does it rain in Denver in May?

How humid and windy is Denver in May?

What are the records for May in Denver?

How does May in Denver compare across Colorado?

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