Frost Dates for Ashley, ND
Elevation: 614 m
Frost Dates
Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide.
May 13
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date.
September 28
30% Probability
Only a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.
Last Spring Frost
May 18
First Fall Frost
September 23
Hard Freeze (28°F)
Last Spring Hard Freeze
May 5
First Fall Hard Freeze
October 4
Growing Season
138 Days
May 13 to September 28
USDA Hardiness Zone
Hardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.Zone 4b
Avg. annual minimum: −25 to −20°F
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dwb
Warm-Summer Continental (Dry Winter)
Warm, wet summers and cold, dry winters. Growing season is concentrated in summer months. Hardy crops and those suited to short seasons perform best.
Temperature
0°
30°
60°
90°
Avg High
Avg Temp
Avg Low
Light Frost (32°F)
Hard Frost (28°F)
Temperature table
| Month | Avg High | Avg Temp | Avg Low |
|---|---|---|---|
| January | 20° | 11° | 1° |
| February | 24° | 15° | 5° |
| March | 37° | 27° | 17° |
| April | 52° | 41° | 29° |
| May | 65° | 54° | 42° |
| June | 75° | 64° | 53° |
| July | 81° | 70° | 58° |
| August | 80° | 68° | 56° |
| September | 71° | 58° | 46° |
| October | 55° | 44° | 32° |
| November | 39° | 29° | 19° |
| December | 25° | 17° | 8° |
Precipitation
0"
1"
2"
3"
3.7"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 0.8 |
| February | 0.9 |
| March | 1.5 |
| April | 2.2 |
| May | 3.1 |
| June | 3.7 |
| July | 3.5 |
| August | 3.3 |
| September | 3.0 |
| October | 2.3 |
| November | 1.1 |
| December | 0.8 |
Sunrise / Sunset
Daylight
Longest: 15h 34m · Shortest: 8h 26m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:35 AM | 4:25 PM | 8h 50m |
| February | 6:57 AM | 5:03 PM | 10h 07m |
| March | 6:12 AM | 5:48 PM | 11h 37m |
| April | 5:20 AM | 6:40 PM | 13h 19m |
| May | 4:37 AM | 7:23 PM | 14h 45m |
| June | 4:14 AM | 7:46 PM | 15h 32m |
| July | 4:23 AM | 7:37 PM | 15h 13m |
| August | 5:01 AM | 6:59 PM | 13h 58m |
| September | 5:51 AM | 6:09 PM | 12h 18m |
| October | 6:40 AM | 5:20 PM | 10h 39m |
| November | 7:24 AM | 4:36 PM | 9h 11m |
| December | 7:46 AM | 4:14 PM | 8h 27m |
Nearby Stations
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