Weather Almanac: Harwich, MA 02645

🗓️ Historical norms for October 2025

September November

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

October avg. precipitation

🌧️ 3.98"

October days below freezing

📉 ≈0.7 days

Average October lows 44°F – 48°F

USDA Zone

Annual extreme lows 5°F to 10°F

Last Spring Frost (36°F)

🌷 May 4

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First Fall Frost (36°F)

🍂 Oct 15

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F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Wed. October 1

🌅 6:37 a.m.

H: 61°F – 71°F

L: 44°F – 58°F

🌇 6:21 p.m.

Thu. October 2

🌅 6:38 a.m.

H: 60°F – 71°F

L: 44°F – 58°F

🌇 6:19 p.m.

Fri. October 3

🌅 6:39 a.m.

H: 60°F – 71°F

L: 44°F – 57°F

🌇 6:18 p.m.

Sat. October 4

🌅 6:40 a.m.

H: 60°F – 70°F

L: 43°F – 57°F

🌇 6:16 p.m.

Sun. October 5

🌅 6:41 a.m.

H: 59°F – 70°F

L: 43°F – 56°F

🌇 6:14 p.m.

Mon. October 6

🌅 6:42 a.m.

H: 59°F – 70°F

L: 43°F – 56°F

🌇 6:13 p.m.

Tue. October 7

🌅 6:43 a.m.

H: 59°F – 69°F

L: 42°F – 56°F

🌇 6:11 p.m.

Wed. October 8

🌅 6:44 a.m.

H: 58°F – 69°F

L: 42°F – 56°F

🌇 6:09 p.m.

Thu. October 9

🌅 6:46 a.m.

H: 58°F – 69°F

L: 41°F – 55°F

🌇 6:08 p.m.

Fri. October 10

🌅 6:47 a.m.

H: 58°F – 69°F

L: 41°F – 55°F

🌇 6:06 p.m.

Sat. October 11

🌅 6:48 a.m.

H: 57°F – 68°F

L: 41°F – 54°F

🌇 6:04 p.m.

Sun. October 12

🌅 6:49 a.m.

H: 57°F – 68°F

L: 40°F – 54°F

🌇 6:03 p.m.

Mon. October 13 Columbus Day

🌅 6:50 a.m.

H: 57°F – 68°F

L: 40°F – 54°F

🌇 6:01 p.m.

Tue. October 14

🌅 6:51 a.m.

H: 56°F – 68°F

L: 40°F – 54°F

🌇 6:00 p.m.

Wed. October 15

🌅 6:52 a.m.

H: 56°F – 67°F

L: 39°F – 53°F

🌇 5:58 p.m.

Thu. October 16

🌅 6:53 a.m.

H: 56°F – 67°F

L: 39°F – 53°F

🌇 5:56 p.m.

Fri. October 17

🌅 6:55 a.m.

H: 56°F – 67°F

L: 39°F – 53°F

🌇 5:55 p.m.

Sat. October 18

🌅 6:56 a.m.

H: 55°F – 67°F

L: 38°F – 52°F

🌇 5:53 p.m.

Sun. October 19

🌅 6:57 a.m.

H: 55°F – 66°F

L: 38°F – 52°F

🌇 5:52 p.m.

Mon. October 20

🌅 6:58 a.m.

H: 55°F – 66°F

L: 38°F – 52°F

🌇 5:50 p.m.

Tue. October 21

🌅 6:59 a.m.

H: 54°F – 66°F

L: 37°F – 52°F

🌇 5:49 p.m.

Wed. October 22

🌅 7:00 a.m.

H: 54°F – 66°F

L: 37°F – 51°F

🌇 5:47 p.m.

Thu. October 23

🌅 7:02 a.m.

H: 54°F – 65°F

L: 37°F – 51°F

🌇 5:46 p.m.

Fri. October 24

🌅 7:03 a.m.

H: 53°F – 65°F

L: 36°F – 51°F

🌇 5:45 p.m.

Sat. October 25

🌅 7:04 a.m.

H: 53°F – 65°F

L: 36°F – 51°F

🌇 5:43 p.m.

Sun. October 26

🌅 7:05 a.m.

H: 53°F – 65°F

L: 36°F – 50°F

🌇 5:42 p.m.

Mon. October 27

🌅 7:06 a.m.

H: 52°F – 64°F

L: 36°F – 50°F

🌇 5:40 p.m.

Tue. October 28

🌅 7:07 a.m.

H: 52°F – 64°F

L: 35°F – 50°F

🌇 5:39 p.m.

Wed. October 29

🌅 7:09 a.m.

H: 52°F – 64°F

L: 35°F – 50°F

🌇 5:38 p.m.

Thu. October 30

🌅 7:10 a.m.

H: 51°F – 64°F

L: 35°F – 50°F

🌇 5:36 p.m.

Fri. October 31 Halloween

🌅 7:11 a.m.

H: 51°F – 64°F

L: 34°F – 49°F

🌇 5:35 p.m.

September November

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

Temperature climatic data from weather station: CHATHAM MUNI AP (USW00094624)

Precipitation climatic data from weather station: CHATHAM MUNI AP (USW00094624)

Agricultural climatic data from weather station: CHATHAM MUNI AP (USW00094624)