Weather Almanac: Williamsport, MD 21795

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 3.86"
September days below freezing
📉 ≈0.0 days
Average September lows ≈54.7°F
USDA Zone
7a
Annual extreme lows 0°F to 5°F
Last Spring Frost (36°F)
🌷 May 2
First Fall Frost (36°F)
🍂 Oct 7
Mon. September 1 Labor Day  

🌅 6:39 a.m.

H: ≈83.5°F

L: ≈59.6°F

🌇 7:41 p.m.

Tue. September 2  

🌅 6:40 a.m.

H: ≈83.2°F

L: ≈59.3°F

🌇 7:40 p.m.

Wed. September 3  

🌅 6:41 a.m.

H: ≈83.0°F

L: ≈59.1°F

🌇 7:38 p.m.

Thu. September 4  

🌅 6:42 a.m.

H: ≈82.7°F

L: ≈58.8°F

🌇 7:37 p.m.

Fri. September 5  

🌅 6:43 a.m.

H: ≈82.4°F

L: ≈58.5°F

🌇 7:35 p.m.

Sat. September 6  

🌅 6:44 a.m.

H: ≈82.1°F

L: ≈58.2°F

🌇 7:33 p.m.

Sun. September 7 🌕

🌅 6:45 a.m.

H: ≈81.8°F

L: ≈57.9°F

🌇 7:32 p.m.

Mon. September 8  

🌅 6:46 a.m.

H: ≈81.4°F

L: ≈57.6°F

🌇 7:30 p.m.

Tue. September 9  

🌅 6:47 a.m.

H: ≈81.1°F

L: ≈57.3°F

🌇 7:29 p.m.

Wed. September 10  

🌅 6:48 a.m.

H: ≈80.8°F

L: ≈56.9°F

🌇 7:27 p.m.

Thu. September 11  

🌅 6:49 a.m.

H: ≈80.4°F

L: ≈56.6°F

🌇 7:25 p.m.

Fri. September 12  

🌅 6:49 a.m.

H: ≈80.0°F

L: ≈56.3°F

🌇 7:24 p.m.

Sat. September 13  

🌅 6:50 a.m.

H: ≈79.6°F

L: ≈55.9°F

🌇 7:22 p.m.

Sun. September 14 Holy Cross 🌗

🌅 6:51 a.m.

H: ≈79.2°F

L: ≈55.5°F

🌇 7:20 p.m.

Mon. September 15  

🌅 6:52 a.m.

H: ≈78.8°F

L: ≈55.2°F

🌇 7:19 p.m.

Tue. September 16  

🌅 6:53 a.m.

H: ≈78.4°F

L: ≈54.8°F

🌇 7:17 p.m.

Wed. September 17  

🌅 6:54 a.m.

H: ≈78.0°F

L: ≈54.4°F

🌇 7:16 p.m.

Thu. September 18  

🌅 6:55 a.m.

H: ≈77.6°F

L: ≈54.0°F

🌇 7:14 p.m.

Fri. September 19  

🌅 6:56 a.m.

H: ≈77.2°F

L: ≈53.6°F

🌇 7:12 p.m.

Sat. September 20  

🌅 6:57 a.m.

H: ≈76.8°F

L: ≈53.2°F

🌇 7:11 p.m.

Sun. September 21 🌑

🌅 6:58 a.m.

H: ≈76.3°F

L: ≈52.8°F

🌇 7:09 p.m.

Mon. September 22 Autumn Equinox  

🌅 6:59 a.m.

H: ≈75.9°F

L: ≈52.3°F

🌇 7:07 p.m.

Tue. September 23  

🌅 7:00 a.m.

H: ≈75.5°F

L: ≈51.9°F

🌇 7:06 p.m.

Wed. September 24  

🌅 7:01 a.m.

H: ≈75.0°F

L: ≈51.5°F

🌇 7:04 p.m.

Thu. September 25  

🌅 7:02 a.m.

H: ≈74.6°F

L: ≈51.1°F

🌇 7:02 p.m.

Fri. September 26  

🌅 7:03 a.m.

H: ≈74.2°F

L: ≈50.6°F

🌇 7:01 p.m.

Sat. September 27  

🌅 7:03 a.m.

H: ≈73.7°F

L: ≈50.2°F

🌇 6:59 p.m.

Sun. September 28  

🌅 7:04 a.m.

H: ≈73.3°F

L: ≈49.7°F

🌇 6:58 p.m.

Mon. September 29 🌓

🌅 7:05 a.m.

H: ≈72.9°F

L: ≈49.3°F

🌇 6:56 p.m.

Tue. September 30  

🌅 7:06 a.m.

H: ≈72.5°F

L: ≈48.9°F

🌇 6:54 p.m.


Temperature climatic data from weather station: WILLIAMSPORT (USC00189570)

Precipitation climatic data from weather station: WILLIAMSPORT (USC00189570)

Agricultural climatic data from weather station: HAGERSTOWN WASHINGTON CO AP (USW00093706)