Frost Dates for Aspen Pitkin Co AP, CO

Elevation: 2353 m

Frost Dates

Last Spring Frost (50%) May 31

First Fall Frost (50%) September 23

30% Probability

Last Spring Frost June 5

First Fall Frost September 18

Hard Freeze (28°F)

Last Spring Hard Freeze May 13

First Fall Hard Freeze October 2

39.22°N, 106.87°W © OpenStreetMap

Growing Season

115 Days May 31 to September 23

USDA Hardiness Zone

Zone 5b

Avg. annual minimum: −15 to −10°F

Learn more

Köppen Climate

Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

0° 30° 60° 90°

22°

Jan

25°

Feb

34°

Mar

41°

Apr

50°

May

60°

Jun

65°

Jul

63°

Aug

56°

Sep

44°

Oct

32°

Nov

22°

Dec

32°F

28°F

Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Temperature table

Average monthly temperatures (°F)
Month	Avg High	Avg Temp	Avg Low
January	35°	22°	9°
February	38°	25°	12°
March	46°	34°	21°
April	55°	41°	28°
May	65°	50°	35°
June	77°	60°	42°
July	82°	65°	48°
August	80°	63°	47°
September	72°	56°	40°
October	60°	44°	29°
November	45°	32°	19°
December	34°	22°	9°

Precipitation

0" 1" 2" 3" 3.1"

1.7"

Jan

1.5"

Feb

2.0"

Mar

2.7"

Apr

2.7"

May

2.0"

Jun

2.7"

Jul

2.3"

Aug

2.9"

Sep

3.1"

Oct

2.2"

Nov

1.3"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	1.7
February	1.5
March	2.0
April	2.7
May	2.7
June	2.0
July	2.7
August	2.3
September	2.9
October	3.1
November	2.2
December	1.3

Sunrise / Sunset

Jan: 7:31 AM – 5:03 PM · 9h 32m

Feb: 7:07 AM – 5:38 PM · 10h 31m

Mar: 7:26 AM – 7:08 PM · 11h 42m

Apr: 6:37 AM – 7:39 PM · 13h 02m

May: 5:59 AM – 8:08 PM · 14h 09m

Jun: 5:45 AM – 8:30 PM · 14h 45m

Jul: 5:58 AM – 8:28 PM · 14h 30m

Aug: 6:25 AM – 7:58 PM · 13h 32m

Sep: 6:55 AM – 7:09 PM · 12h 14m

Oct: 7:24 AM – 6:21 PM · 10h 57m

Nov: 6:58 AM – 4:47 PM · 9h 48m

Dec: 7:26 AM – 4:41 PM · 9h 15m

Daylight Mountain Time (MT) Longest: 14h 46m · Shortest: 9h 14m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (Mountain Time (MT))
Month	Sunrise	Sunset	Daylight
January	7:31 AM	5:03 PM	9h 32m
February	7:07 AM	5:38 PM	10h 31m
March	7:26 AM	7:08 PM	11h 42m
April	6:37 AM	7:39 PM	13h 02m
May	5:59 AM	8:08 PM	14h 09m
June	5:45 AM	8:30 PM	14h 45m
July	5:58 AM	8:28 PM	14h 30m
August	6:25 AM	7:58 PM	13h 32m
September	6:55 AM	7:09 PM	12h 14m
October	7:24 AM	6:21 PM	10h 57m
November	6:58 AM	4:47 PM	9h 48m
December	7:26 AM	4:41 PM	9h 15m

Nearby Stations

Aspen 1sw, CO June 2 - September 23 Meredith, CO Crested Butte, CO Sugarloaf Rsvr, CO Twin Lakes Rsvr, CO June 16 - September 10 Leadville Lake Co AP, CO

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