Frost Dates for Milan, NH

Based on data from Berlin Muni AP weather station, 0 miles away

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. May 30
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. September 19
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 June 4
First Fall Frost September 13

Hard Freeze (28°F)

Last Spring Hard Freeze May 17
First Fall Hard Freeze September 30
44.57°N, -71.19°W © OpenStreetMap

Growing Season

112 Days May 30 to September 19

USDA Hardiness Zone iHardiness 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 (−34 to −32°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

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° 20° 40° 60° 80°
15°
High: 27°F
Avg: 15°F
Low: 3°F
Jan
17°
High: 30°F
Avg: 17°F
Low: 3°F
Feb
26°
High: 39°F
Avg: 26°F
Low: 14°F
Mar
40°
High: 53°F
Avg: 40°F
Low: 27°F
Apr
52°
High: 67°F
Avg: 52°F
Low: 37°F
May
61°
High: 75°F
Avg: 61°F
Low: 47°F
Jun
66°
High: 80°F
Avg: 66°F
Low: 52°F
Jul
64°
High: 78°F
Avg: 64°F
Low: 50°F
Aug
57°
High: 71°F
Avg: 57°F
Low: 42°F
Sep
45°
High: 57°F
Avg: 45°F
Low: 32°F
Oct
33°
High: 44°F
Avg: 33°F
Low: 23°F
Nov
22°
High: 32°F
Avg: 22°F
Low: 12°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3" 3.7"
2.1"
2.08"
Jan
2.1"
2.07"
Feb
2.6"
2.62"
Mar
3.6"
3.64"
Apr
3.7"
3.70"
May
3.4"
3.43"
Jun
3.1"
3.13"
Jul
1.9"
1.92"
Aug
1.9"
1.95"
Sep
2.5"
2.48"
Oct
2.4"
2.40"
Nov
2.4"
2.40"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13.5h14.5h15.5h15h14h12.5h10.5h9.5h8.5h
Jan: 7:30 AM – 4:30 PM · 8h 60m
Feb: 6:54 AM – 5:06 PM · 10h 12m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:22 AM – 6:38 PM · 13h 15m
May: 4:42 AM – 7:18 PM · 14h 37m
Jun: 4:19 AM – 7:41 PM · 15h 21m
Jul: 4:29 AM – 7:31 PM · 15h 03m
Aug: 5:04 AM – 6:56 PM · 13h 52m
Sep: 5:51 AM – 6:09 PM · 12h 17m
Oct: 6:38 AM – 5:22 PM · 10h 43m
Nov: 7:20 AM – 4:40 PM · 9h 20m
Dec: 7:41 AM – 4:19 PM · 8h 39m
Daylight Longest: 15h 22m · Shortest: 8h 38m

Nearby Stations

Berlin, NHMay 14 - September 30 York Pond, NH May 23 - September 22 Gorham AP, NH May 14 - September 26 Errol AP, NHMay 21 - September 22 Middle Dam, MEMay 19 - October 1 Jefferson, NHMay 8 - October 1

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