Weather Almanac: Jefferson, WI 53549

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 3.59"
September days below freezing
📉 ≈0.0 days
Average September lows ≈50.3°F
USDA Zone
5b
Annual extreme lows -15°F to -10°F
Last Spring Frost (36°F)
🌷 May 21
First Fall Frost (36°F)
🍂 Sep 24
Mon. September 1 Labor Day  

🌅 6:19 a.m.

H: ≈78.6°F

L: ≈56.8°F

🌇 7:29 p.m.

Tue. September 2  

🌅 6:21 a.m.

H: ≈78.3°F

L: ≈56.4°F

🌇 7:27 p.m.

Wed. September 3  

🌅 6:22 a.m.

H: ≈78.0°F

L: ≈56.0°F

🌇 7:25 p.m.

Thu. September 4  

🌅 6:23 a.m.

H: ≈77.7°F

L: ≈55.6°F

🌇 7:23 p.m.

Fri. September 5  

🌅 6:24 a.m.

H: ≈77.4°F

L: ≈55.1°F

🌇 7:22 p.m.

Sat. September 6  

🌅 6:25 a.m.

H: ≈77.1°F

L: ≈54.7°F

🌇 7:20 p.m.

Sun. September 7 🌕

🌅 6:26 a.m.

H: ≈76.8°F

L: ≈54.2°F

🌇 7:18 p.m.

Mon. September 8  

🌅 6:27 a.m.

H: ≈76.4°F

L: ≈53.8°F

🌇 7:16 p.m.

Tue. September 9  

🌅 6:28 a.m.

H: ≈76.1°F

L: ≈53.3°F

🌇 7:15 p.m.

Wed. September 10  

🌅 6:29 a.m.

H: ≈75.8°F

L: ≈52.8°F

🌇 7:13 p.m.

Thu. September 11  

🌅 6:30 a.m.

H: ≈75.4°F

L: ≈52.4°F

🌇 7:11 p.m.

Fri. September 12  

🌅 6:31 a.m.

H: ≈75.1°F

L: ≈51.9°F

🌇 7:09 p.m.

Sat. September 13  

🌅 6:32 a.m.

H: ≈74.7°F

L: ≈51.4°F

🌇 7:07 p.m.

Sun. September 14 Holy Cross 🌗

🌅 6:34 a.m.

H: ≈74.3°F

L: ≈50.9°F

🌇 7:06 p.m.

Mon. September 15  

🌅 6:35 a.m.

H: ≈74.0°F

L: ≈50.5°F

🌇 7:04 p.m.

Tue. September 16  

🌅 6:36 a.m.

H: ≈73.6°F

L: ≈50.0°F

🌇 7:02 p.m.

Wed. September 17  

🌅 6:37 a.m.

H: ≈73.2°F

L: ≈49.5°F

🌇 7:00 p.m.

Thu. September 18  

🌅 6:38 a.m.

H: ≈72.8°F

L: ≈49.0°F

🌇 6:58 p.m.

Fri. September 19  

🌅 6:39 a.m.

H: ≈72.4°F

L: ≈48.6°F

🌇 6:57 p.m.

Sat. September 20  

🌅 6:40 a.m.

H: ≈72.0°F

L: ≈48.1°F

🌇 6:55 p.m.

Sun. September 21 🌑

🌅 6:41 a.m.

H: ≈71.7°F

L: ≈47.7°F

🌇 6:53 p.m.

Mon. September 22 Autumn Equinox  

🌅 6:42 a.m.

H: ≈71.3°F

L: ≈47.2°F

🌇 6:51 p.m.

Tue. September 23  

🌅 6:43 a.m.

H: ≈70.8°F

L: ≈46.8°F

🌇 6:49 p.m.

Wed. September 24  

🌅 6:45 a.m.

H: ≈70.4°F

L: ≈46.4°F

🌇 6:48 p.m.

Thu. September 25  

🌅 6:46 a.m.

H: ≈70.0°F

L: ≈45.9°F

🌇 6:46 p.m.

Fri. September 26  

🌅 6:47 a.m.

H: ≈69.6°F

L: ≈45.5°F

🌇 6:44 p.m.

Sat. September 27  

🌅 6:48 a.m.

H: ≈69.2°F

L: ≈45.1°F

🌇 6:42 p.m.

Sun. September 28  

🌅 6:49 a.m.

H: ≈68.8°F

L: ≈44.7°F

🌇 6:41 p.m.

Mon. September 29 🌓

🌅 6:50 a.m.

H: ≈68.4°F

L: ≈44.4°F

🌇 6:39 p.m.

Tue. September 30  

🌅 6:51 a.m.

H: ≈68.0°F

L: ≈44.0°F

🌇 6:37 p.m.


Temperature climatic data from weather station: JEFFERSON WWTP (USC00474108)

Precipitation climatic data from weather station: JEFFERSON WWTP (USC00474108)

Agricultural climatic data from weather station: FT ATKINSON (USC00472869)