Arvada, CO weather in May
Expect mild weather with frequent rain in Arvada in May, with highs near 71°F and lows near 43°F. Rain or snow falls on about 10 days. Snowfall averages about 2.2 in. Great for outdoor plans.
- Normal high
- 71°F
- Normal low
- 43°F
- Wet days
- 10
- 2.6 in total
- Snowfall
- 2.2 in
- snow on the ground 1 day
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 65°F | 77°F |
| Normal low | 37°F | 47°F |
| Chance of a wet day | 32% | 32% |
| Sunrise / sunset | 6:00 am / 7:54 pm | 5:34 am / 8:21 pm |
| Daylight | 13.9 h | 14.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
A typical May day
- 6 am48°Fdew point 38°F
- 9 am59°Fdew point 37°F
- Noon66°Fdew point 35°F
- 3 pm67°Fdew point 35°F
- 6 pm63°Fdew point 37°F
- 9 pm54°Fdew point 39°F
NOAA hourly normals (local standard time) from Aurora Buckley Fld ANGB (19 mi away); average wind 9 mph; clear or few clouds in 29% of daytime hours, mostly cloudy or overcast in 54%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 31
- Hot dayshigh 90°F or more1 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below2 of 31
- Snow on the groundsnow depth 1 in or more1 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain and snow in May
Normal precipitation is 2.6 in; a dry May brings about 1.6 in and a wet one about 3.8 in (25th and 75th percentiles). About 2 days bring half an inch or more. Normal snowfall is 2.2 in, with about 1 day of an inch or more.
How May varies from year to year
- Warmest May, 1991-20202000: average high 77°F
- Coolest May1995: average high 62°F
- Wettest May2015: 6.2 in
- Driest May2006: 0.6 in
- Highest reading97°F (May 30, 2003)
- Lowest reading19°F (May 2, 2013)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 62°F | 71°F | 83°F |
| Normal low | 33°F | 43°F | 51°F |
| Wet days | 9 | 10 | 8 |
| Comfortable days | 13 | 16 | 10 |
| Daylight | 13.3 h | 14.4 h | 14.9 h |
Highs change by +9°F from April and +12°F into June.
Nearby alternatives in May
- Warmer: Pueblo, CO110 mi · high 77°F · 8 wet days
- Drier: Taos, NM236 mi · high 70°F · 5 wet days
- Cooler: Estes Park, CO46 mi · high 60°F · 12 wet days
How Arvada ranks in May
- Normal high254th warmest of 378 cities; 6th of 17 in Colorado
- Wet days201st driest of 378
- Comfortable days81st most of 339
What to pack for Arvada in May
- Layers – afternoons near 71°F but nights near 43°F
- A rain jacket or umbrella – rain or snow on about 10 days
Frost in May
The last spring frost typically comes around May 5; in 1 year in 10 it comes after May 18. All frost dates for Arvada.
Heating and cooling
May has 272 heating degree days and 15 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Arvada in May?
The normal high is 71°F and the normal low is 43°F. From 1991 to 2020 the hottest May reading was 97°F (May 30, 2003).
Does it rain a lot in Arvada in May?
About 10 days in May have at least 0.01 in of precipitation, and the normal total is 2.7 in. The wettest May in 1991-2020 was in 2015 (6.2 in); the driest was in 2006 (0.6 in).
Does it snow in Arvada in May?
Yes. Normal snowfall in May is 2.2 in, and snow covers the ground on about 1 day.
Is May a good time to visit Arvada?
May ranks 1st of 12 months on our comfort score for Arvada (73 out of 100). It has about 16 comfortable days and about 1 day at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Wheat Ridge 2 (USC00058995), 2.5 mi SW of the city center, 5,398 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Aurora Buckley Fld ANGB (USW00023036), 19 mi ESE of the city center, 5,663 ft (314 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Buckley Air Force Base (724695-23036), 19 mi ESE of the city center, 5,663 ft (314 ft higher than the city). Hourly observations, 1991-2020.