Weather Almanac: West Granby, CT 06090

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 4.42"
September days below freezing
📉 ≈0.3 days
Average September lows ≈49.5°F
USDA Zone
6a
Annual extreme lows -10°F to -5°F
Last Spring Frost (36°F)
🌷 May 17
First Fall Frost (36°F)
🍂 Sep 30
Mon. September 1 Labor Day  

🌅 6:17 a.m.

H: ≈77.3°F

L: ≈54.9°F

🌇 7:24 p.m.

Tue. September 2  

🌅 6:18 a.m.

H: ≈77.0°F

L: ≈54.6°F

🌇 7:22 p.m.

Wed. September 3  

🌅 6:19 a.m.

H: ≈76.8°F

L: ≈54.2°F

🌇 7:21 p.m.

Thu. September 4  

🌅 6:20 a.m.

H: ≈76.6°F

L: ≈53.9°F

🌇 7:19 p.m.

Fri. September 5  

🌅 6:21 a.m.

H: ≈76.3°F

L: ≈53.5°F

🌇 7:17 p.m.

Sat. September 6  

🌅 6:22 a.m.

H: ≈76.1°F

L: ≈53.1°F

🌇 7:15 p.m.

Sun. September 7 🌕

🌅 6:23 a.m.

H: ≈75.8°F

L: ≈52.8°F

🌇 7:14 p.m.

Mon. September 8  

🌅 6:24 a.m.

H: ≈75.6°F

L: ≈52.4°F

🌇 7:12 p.m.

Tue. September 9  

🌅 6:25 a.m.

H: ≈75.3°F

L: ≈52.0°F

🌇 7:10 p.m.

Wed. September 10  

🌅 6:26 a.m.

H: ≈75.0°F

L: ≈51.6°F

🌇 7:09 p.m.

Thu. September 11  

🌅 6:27 a.m.

H: ≈74.7°F

L: ≈51.2°F

🌇 7:07 p.m.

Fri. September 12  

🌅 6:28 a.m.

H: ≈74.4°F

L: ≈50.8°F

🌇 7:05 p.m.

Sat. September 13  

🌅 6:29 a.m.

H: ≈74.1°F

L: ≈50.4°F

🌇 7:03 p.m.

Sun. September 14 Holy Cross 🌗

🌅 6:30 a.m.

H: ≈73.8°F

L: ≈50.0°F

🌇 7:02 p.m.

Mon. September 15  

🌅 6:31 a.m.

H: ≈73.5°F

L: ≈49.7°F

🌇 7:00 p.m.

Tue. September 16  

🌅 6:32 a.m.

H: ≈73.2°F

L: ≈49.3°F

🌇 6:58 p.m.

Wed. September 17  

🌅 6:33 a.m.

H: ≈72.9°F

L: ≈48.9°F

🌇 6:56 p.m.

Thu. September 18  

🌅 6:35 a.m.

H: ≈72.5°F

L: ≈48.5°F

🌇 6:55 p.m.

Fri. September 19  

🌅 6:36 a.m.

H: ≈72.2°F

L: ≈48.1°F

🌇 6:53 p.m.

Sat. September 20  

🌅 6:37 a.m.

H: ≈71.9°F

L: ≈47.7°F

🌇 6:51 p.m.

Sun. September 21 🌑

🌅 6:38 a.m.

H: ≈71.5°F

L: ≈47.4°F

🌇 6:49 p.m.

Mon. September 22 Autumn Equinox  

🌅 6:39 a.m.

H: ≈71.1°F

L: ≈47.0°F

🌇 6:48 p.m.

Tue. September 23  

🌅 6:40 a.m.

H: ≈70.8°F

L: ≈46.6°F

🌇 6:46 p.m.

Wed. September 24  

🌅 6:41 a.m.

H: ≈70.4°F

L: ≈46.2°F

🌇 6:44 p.m.

Thu. September 25  

🌅 6:42 a.m.

H: ≈70.0°F

L: ≈45.9°F

🌇 6:42 p.m.

Fri. September 26  

🌅 6:43 a.m.

H: ≈69.6°F

L: ≈45.5°F

🌇 6:41 p.m.

Sat. September 27  

🌅 6:44 a.m.

H: ≈69.2°F

L: ≈45.2°F

🌇 6:39 p.m.

Sun. September 28  

🌅 6:45 a.m.

H: ≈68.8°F

L: ≈44.8°F

🌇 6:37 p.m.

Mon. September 29 🌓

🌅 6:46 a.m.

H: ≈68.4°F

L: ≈44.5°F

🌇 6:35 p.m.

Tue. September 30  

🌅 6:47 a.m.

H: ≈68.0°F

L: ≈44.2°F

🌇 6:34 p.m.


Temperature climatic data from weather station: WESTFIELD 3 SW (USC00199193)

Precipitation climatic data from weather station: BARKHAMSTED (USC00060299)

Agricultural climatic data from weather station: BURLINGTON (USC00060973)