Weather Almanac: Boothbay, ME 04537

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 3.99"
September days below freezing
📉 ≈0.2 days
Average September lows ≈50.0°F
USDA Zone
6a
Annual extreme lows -10°F to -5°F
Last Spring Frost (36°F)
🌷 May 26
First Fall Frost (36°F)
🍂 Sep 22
Mon. September 1 Labor Day  

🌅 6:02 a.m.

H: ≈72.9°F

L: ≈54.7°F

🌇 7:13 p.m.

Tue. September 2  

🌅 6:03 a.m.

H: ≈72.6°F

L: ≈54.4°F

🌇 7:11 p.m.

Wed. September 3  

🌅 6:04 a.m.

H: ≈72.3°F

L: ≈54.2°F

🌇 7:10 p.m.

Thu. September 4  

🌅 6:05 a.m.

H: ≈72.0°F

L: ≈53.9°F

🌇 7:08 p.m.

Fri. September 5  

🌅 6:06 a.m.

H: ≈71.7°F

L: ≈53.6°F

🌇 7:06 p.m.

Sat. September 6  

🌅 6:07 a.m.

H: ≈71.3°F

L: ≈53.3°F

🌇 7:04 p.m.

Sun. September 7 🌕

🌅 6:09 a.m.

H: ≈71.0°F

L: ≈53.0°F

🌇 7:02 p.m.

Mon. September 8  

🌅 6:10 a.m.

H: ≈70.6°F

L: ≈52.7°F

🌇 7:01 p.m.

Tue. September 9  

🌅 6:11 a.m.

H: ≈70.3°F

L: ≈52.4°F

🌇 6:59 p.m.

Wed. September 10  

🌅 6:12 a.m.

H: ≈69.9°F

L: ≈52.1°F

🌇 6:57 p.m.

Thu. September 11  

🌅 6:13 a.m.

H: ≈69.6°F

L: ≈51.7°F

🌇 6:55 p.m.

Fri. September 12  

🌅 6:14 a.m.

H: ≈69.2°F

L: ≈51.4°F

🌇 6:53 p.m.

Sat. September 13  

🌅 6:15 a.m.

H: ≈68.8°F

L: ≈51.1°F

🌇 6:51 p.m.

Sun. September 14 Holy Cross 🌗

🌅 6:16 a.m.

H: ≈68.4°F

L: ≈50.7°F

🌇 6:50 p.m.

Mon. September 15  

🌅 6:18 a.m.

H: ≈68.0°F

L: ≈50.4°F

🌇 6:48 p.m.

Tue. September 16  

🌅 6:19 a.m.

H: ≈67.7°F

L: ≈50.0°F

🌇 6:46 p.m.

Wed. September 17  

🌅 6:20 a.m.

H: ≈67.3°F

L: ≈49.6°F

🌇 6:44 p.m.

Thu. September 18  

🌅 6:21 a.m.

H: ≈66.9°F

L: ≈49.3°F

🌇 6:42 p.m.

Fri. September 19  

🌅 6:22 a.m.

H: ≈66.5°F

L: ≈48.9°F

🌇 6:40 p.m.

Sat. September 20  

🌅 6:23 a.m.

H: ≈66.1°F

L: ≈48.5°F

🌇 6:39 p.m.

Sun. September 21 🌑

🌅 6:24 a.m.

H: ≈65.8°F

L: ≈48.1°F

🌇 6:37 p.m.

Mon. September 22 Autumn Equinox  

🌅 6:26 a.m.

H: ≈65.4°F

L: ≈47.7°F

🌇 6:35 p.m.

Tue. September 23  

🌅 6:27 a.m.

H: ≈65.0°F

L: ≈47.4°F

🌇 6:33 p.m.

Wed. September 24  

🌅 6:28 a.m.

H: ≈64.6°F

L: ≈47.0°F

🌇 6:31 p.m.

Thu. September 25  

🌅 6:29 a.m.

H: ≈64.3°F

L: ≈46.6°F

🌇 6:29 p.m.

Fri. September 26  

🌅 6:30 a.m.

H: ≈63.9°F

L: ≈46.2°F

🌇 6:27 p.m.

Sat. September 27  

🌅 6:31 a.m.

H: ≈63.5°F

L: ≈45.8°F

🌇 6:26 p.m.

Sun. September 28  

🌅 6:32 a.m.

H: ≈63.2°F

L: ≈45.4°F

🌇 6:24 p.m.

Mon. September 29 🌓

🌅 6:34 a.m.

H: ≈62.8°F

L: ≈45.0°F

🌇 6:22 p.m.

Tue. September 30  

🌅 6:35 a.m.

H: ≈62.5°F

L: ≈44.7°F

🌇 6:20 p.m.


Temperature climatic data from weather station: WESTPORT ISLAND (USC00179547)

Precipitation climatic data from weather station: WESTPORT ISLAND (USC00179547)

Agricultural climatic data from weather station: WISCASSET AP (USW00094623)