How warm is it in Aspen in May?

Daytime highs averaged 10.4 °C, night-time lows -3.1 °C. The highest value of the past 10 years was 20.3 °C (28 May 2020), the lowest -12.0 °C (8 May 2024).

How often does it rain in Aspen in May?

On average there were 8.2 rain days (at least 1 mm) with 35.2 mm of precipitation in total.

Holiday Weather Rewind

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Aspen weather in May: temperature & rain

Photo: Jeffrey Beall · CC BY 4.0

🇺🇸 Weather in Aspen in May

This is what the weather in Aspen (Colorado, USA) was like in May over the years 2017–2026.

Key facts at a glance

Prevailing weather: Partly cloudy

Avg. daytime high

10.4 °C

5.7 °C – 13.3 °C

Avg. night-time low

-3.1 °C

-4.9 °C – -1.6 °C

Avg. rain days in period

8.2

26 % of days · ≥ 1.0 mm

Avg. precipitation in period

35.2 mm

14.5 mm – 81.0 mm

Avg. cloud cover

60 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

–

No sea nearby – no sea temperature.

Extremes: Highest temperature 20.3 °C (28 May 2020) · Lowest temperature -12.0 °C (8 May 2024) · Avg. daily peak wind 15 km/h

Weather mix of all days

40Sunny
140Partly cloudy
48Cloudy
40Light rain
2Rain
40Snow

Summary

On average 10.4 °C during the day and -3.1 °C at night.
On average 8.2 rain days (Rain day = at least 1.0 mm of precipitation) with 35.2 mm of precipitation in total.
Prevailing weather: Partly cloudy.
Warmest year: 2018 (avg. 13.3 °C), coolest: 2019 (avg. 5.7 °C).
Wettest year: 2019 (81.0 mm), driest: 2018 (14.5 mm).
Extremes: 20.3 °C on 28 May 2020 and -12.0 °C on 8 May 2024.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max11.5°Avg. min-2.8°
Rain days
8 Rain days
Precipitation
28.7 mm
Avg. cloud cover
58 % cloudy
Sea temperature
–
Max 19.6 °C · Min -8.1 °C
2025
Avg. max10.9°Avg. min-2.7°
Rain days
7 Rain days
Precipitation
20.5 mm
Avg. cloud cover
59 % cloudy
Sea temperature
–
Max 20.3 °C · Min -6.0 °C
2024
Avg. max8.2°Avg. min-4.1°
Rain days
11 Rain days
Precipitation
55.2 mm
Avg. cloud cover
62 % cloudy
Sea temperature
–
Max 16.5 °C · Min -12.0 °C
2023
Avg. max10.8°Avg. min-1.6°
Rain days
9 Rain days
Precipitation
27.5 mm
Avg. cloud cover
63 % cloudy
Sea temperature
–
Max 14.8 °C · Min -4.5 °C
2022
Avg. max10.1°Avg. min-3.6°
Rain days
8 Rain days
Precipitation
29.6 mm
Avg. cloud cover
63 % cloudy
Sea temperature
–
Max 18.2 °C · Min -8.4 °C
2021
Avg. max10.9°Avg. min-3.0°
Rain days
8 Rain days
Precipitation
33.0 mm
Avg. cloud cover
64 % cloudy
Sea temperature
–
Max 16.7 °C · Min -9.0 °C
2020
Avg. max13.0°Avg. min-2.7°
Rain days
2 Rain days
Precipitation
20.4 mm
Avg. cloud cover
53 % cloudy
Sea temperature
–
Max 20.3 °C · Min -7.3 °C
2019
Avg. max5.7°Avg. min-4.9°
Rain days
15 Rain days
Precipitation
81.0 mm
Avg. cloud cover
67 % cloudy
Sea temperature
–
Max 13.1 °C · Min -11.1 °C
2018
Avg. max13.3°Avg. min-1.7°
Rain days
3 Rain days
Precipitation
14.5 mm
Avg. cloud cover
53 % cloudy
Sea temperature
–
Max 19.6 °C · Min -5.8 °C
2017
Avg. max9.3°Avg. min-4.1°
Rain days
11 Rain days
Precipitation
41.5 mm
Avg. cloud cover
60 % cloudy
Sea temperature
–
Max 15.7 °C · Min -10.8 °C

Frequently asked questions

How warm is it in Aspen in May?: Daytime highs averaged 10.4 °C, night-time lows -3.1 °C. The highest value of the past 10 years was 20.3 °C (28 May 2020), the lowest -12.0 °C (8 May 2024).
How often does it rain in Aspen in May?: On average there were 8.2 rain days (at least 1 mm) with 35.2 mm of precipitation in total.

Check your exact travel dates

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)