Frost Dates for Clearwater, MN
Based on data from St Cloud Rgnl AP weather station, 9 miles away
Elevation: 965 ft
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 7
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 30
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 13
First Fall Frost
September 25
Hard Freeze (28°F)
Last Spring Hard Freeze
April 27
First Fall Hard Freeze
October 8
Growing Season
146 Days
May 7 to September 30
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 4a
Avg. annual minimum: −30 to −25°F
Köppen Climate
The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Dfa
Hot-Summer Continental
Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.
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 | 21° | 12° | 3° |
| February | 26° | 16° | 7° |
| March | 39° | 29° | 20° |
| April | 54° | 43° | 32° |
| May | 68° | 56° | 45° |
| June | 77° | 66° | 55° |
| July | 82° | 70° | 59° |
| August | 79° | 68° | 56° |
| September | 71° | 60° | 48° |
| October | 56° | 46° | 36° |
| November | 39° | 31° | 23° |
| December | 26° | 18° | 10° |
Precipitation
0"
2"
4"
5.4"
Precipitation table
| Month | Precipitation |
|---|---|
| January | 1.6 |
| February | 1.7 |
| March | 2.8 |
| April | 4.0 |
| May | 4.6 |
| June | 4.8 |
| July | 4.5 |
| August | 5.4 |
| September | 4.3 |
| October | 3.4 |
| November | 2.1 |
| December | 1.6 |
Sunrise / Sunset
Daylight
Central Time (CT)
Longest: 15h 30m · Shortest: 8h 30m
Sunrise and sunset table
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:59 AM | 4:52 PM | 8h 53m |
| February | 7:26 AM | 5:35 PM | 10h 09m |
| March | 7:37 AM | 7:14 PM | 11h 37m |
| April | 6:38 AM | 7:55 PM | 13h 18m |
| May | 5:51 AM | 8:34 PM | 14h 42m |
| June | 5:32 AM | 9:01 PM | 15h 28m |
| July | 5:47 AM | 8:57 PM | 15h 10m |
| August | 6:22 AM | 8:18 PM | 13h 56m |
| September | 7:02 AM | 7:20 PM | 12h 18m |
| October | 7:41 AM | 6:22 PM | 10h 41m |
| November | 7:24 AM | 4:38 PM | 9h 14m |
| December | 7:56 AM | 4:28 PM | 8h 31m |
Nearby Stations
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