Frost Dates for Manchester 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 21
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 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 April 27
First Fall Frost October 13

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 7
First Fall Hard Freeze November 1
42.93°N, -71.44°W © OpenStreetMap

Growing Season

181 Days April 21 to October 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 6b

Learn more

Temperature

10° 30° 50° 70° 90°
26°
High: 34°
Avg: 26°
Low: 17°
Jan
28°
High: 37°
Avg: 28°
Low: 19°
Feb
37°
High: 46°
Avg: 37°
Low: 27°
Mar
48°
High: 59°
Avg: 48°
Low: 38°
Apr
59°
High: 70°
Avg: 59°
Low: 48°
May
68°
High: 79°
Avg: 68°
Low: 58°
Jun
74°
High: 84°
Avg: 74°
Low: 64°
Jul
72°
High: 82°
Avg: 72°
Low: 62°
Aug
64°
High: 75°
Avg: 64°
Low: 54°
Sep
52°
High: 62°
Avg: 52°
Low: 42°
Oct
41°
High: 50°
Avg: 41°
Low: 33°
Nov
31°
High: 39°
Avg: 31°
Low: 24°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 5.3"
3.8"
3.83"
Jan
4.1"
4.13"
Feb
4.4"
4.36"
Mar
4.1"
4.12"
Apr
4.7"
4.65"
May
4.5"
4.50"
Jun
4.4"
4.43"
Jul
4.2"
4.19"
Aug
4.7"
4.71"
Sep
5.3"
5.25"
Oct
4.4"
4.42"
Nov
4.7"
4.72"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h14h15h15h14h12h11h9h9h
Jan: 7:25 AM – 4:35 PM · 9h 10m
Feb: 6:51 AM – 5:09 PM · 10h 18m
Mar: 6:11 AM – 5:49 PM · 11h 39m
Apr: 5:25 AM – 6:35 PM · 13h 11m
May: 4:46 AM – 7:14 PM · 14h 28m
Jun: 4:25 AM – 7:35 PM · 15h 09m
Jul: 4:34 AM – 7:26 PM · 14h 52m
Aug: 5:07 AM – 6:53 PM · 13h 46m
Sep: 5:52 AM – 6:08 PM · 12h 17m
Oct: 6:36 AM – 5:24 PM · 10h 48m
Nov: 7:15 AM – 4:45 PM · 9h 29m
Dec: 7:35 AM – 4:25 PM · 8h 51m
Daylight Longest: 15h 10m · Shortest: 8h 50m

Nearby Stations

Massabesic Lake, NH April 30 - October 11 Nashua 2 Nnw, NH April 30 - October 12 Hudson 1 Sse, NHMay 3 - October 8 E Milford, NHApril 28 - October 8 W Hampstead, NH April 30 - October 11 Milford, NHMay 3 - October 5

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