Frost Dates for Rochester Skyhaven AP, NH

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. April 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. October 9
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 May 5
First Fall Frost October 4

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 17
First Fall Hard Freeze October 23
43.28°N, -70.92°W © OpenStreetMap

Growing Season

162 Days April 30 to October 9

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 6a

Learn more

Temperature

10° 30° 50° 70° 90°
24°
High: 33°
Avg: 24°
Low: 15°
Jan
26°
High: 35°
Avg: 26°
Low: 17°
Feb
34°
High: 44°
Avg: 34°
Low: 25°
Mar
46°
High: 57°
Avg: 46°
Low: 35°
Apr
56°
High: 67°
Avg: 56°
Low: 45°
May
66°
High: 77°
Avg: 66°
Low: 54°
Jun
71°
High: 82°
Avg: 71°
Low: 60°
Jul
69°
High: 81°
Avg: 69°
Low: 58°
Aug
62°
High: 73°
Avg: 62°
Low: 50°
Sep
50°
High: 60°
Avg: 50°
Low: 39°
Oct
39°
High: 48°
Avg: 39°
Low: 31°
Nov
30°
High: 37°
Avg: 30°
Low: 22°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 5.5"
4.0"
3.96"
Jan
4.3"
4.26"
Feb
3.7"
3.69"
Mar
4.0"
4.01"
Apr
4.5"
4.52"
May
4.3"
4.32"
Jun
3.1"
3.09"
Jul
2.1"
2.06"
Aug
2.4"
2.43"
Sep
4.5"
4.47"
Oct
5.5"
5.50"
Nov
4.6"
4.56"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h14h15h15h14h12h11h9h9h
Jan: 7:26 AM – 4:34 PM · 9h 08m
Feb: 6:51 AM – 5:09 PM · 10h 17m
Mar: 6:11 AM – 5:49 PM · 11h 39m
Apr: 5:24 AM – 6:36 PM · 13h 12m
May: 4:45 AM – 7:15 PM · 14h 30m
Jun: 4:24 AM – 7:36 PM · 15h 12m
Jul: 4:33 AM – 7:27 PM · 14h 54m
Aug: 5:07 AM – 6:53 PM · 13h 47m
Sep: 5:52 AM – 6:08 PM · 12h 17m
Oct: 6:37 AM – 5:23 PM · 10h 47m
Nov: 7:16 AM – 4:44 PM · 9h 27m
Dec: 7:36 AM – 4:24 PM · 8h 48m
Daylight Longest: 15h 13m · Shortest: 8h 47m

Nearby Stations

Durham 2 N, NHMay 3 - October 10 Durham, NHMay 8 - October 4 Durham 2 Ssw, NHMay 7 - October 4 Sanford 2 Nnw, ME May 16 - September 30 Cape Neddick, ME May 1 - October 14 Greenland, NHMay 4 - October 8

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