Weather Almanac: Hartland, WI 53029

🗓️ Historical norms for December 2025

November January

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

December avg. precipitation

🌧️ 2.04"

December days below freezing

📉 ≈30.2 days

Average December lows ≈13.6°F

USDA Zone

Annual extreme lows -15°F to -10°F

Last Spring Frost (36°F)

🌷 May 21

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First Fall Frost (36°F)

🍂 Sep 24

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F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Mon. December 1

🌅 7:05 a.m.

H: ≈35.9°F

L: ≈18.6°F

🌇 4:19 p.m.

Tue. December 2

🌅 7:06 a.m.

H: ≈35.4°F

L: ≈18.2°F

🌇 4:18 p.m.

Wed. December 3

🌅 7:07 a.m.

H: ≈34.9°F

L: ≈17.8°F

🌇 4:18 p.m.

Thu. December 4

🌅 7:08 a.m.

H: ≈34.5°F

L: ≈17.4°F

🌇 4:18 p.m.

Fri. December 5

🌅 7:09 a.m.

H: ≈34.0°F

L: ≈17.0°F

🌇 4:18 p.m.

Sat. December 6

🌅 7:10 a.m.

H: ≈33.6°F

L: ≈16.7°F

🌇 4:18 p.m.

Sun. December 7

🌅 7:11 a.m.

H: ≈33.2°F

L: ≈16.3°F

🌇 4:18 p.m.

Mon. December 8

🌅 7:12 a.m.

H: ≈32.8°F

L: ≈15.9°F

🌇 4:18 p.m.

Tue. December 9

🌅 7:13 a.m.

H: ≈32.4°F

L: ≈15.6°F

🌇 4:18 p.m.

Wed. December 10

🌅 7:14 a.m.

H: ≈32.0°F

L: ≈15.2°F

🌇 4:18 p.m.

Thu. December 11

🌅 7:15 a.m.

H: ≈31.7°F

L: ≈14.9°F

🌇 4:18 p.m.

Fri. December 12

🌅 7:16 a.m.

H: ≈31.3°F

L: ≈14.6°F

🌇 4:18 p.m.

Sat. December 13

🌅 7:16 a.m.

H: ≈31.0°F

L: ≈14.2°F

🌇 4:18 p.m.

Sun. December 14

🌅 7:17 a.m.

H: ≈30.7°F

L: ≈13.9°F

🌇 4:18 p.m.

Mon. December 15

🌅 7:18 a.m.

H: ≈30.4°F

L: ≈13.6°F

🌇 4:18 p.m.

Tue. December 16

🌅 7:19 a.m.

H: ≈30.2°F

L: ≈13.3°F

🌇 4:19 p.m.

Wed. December 17

🌅 7:19 a.m.

H: ≈29.9°F

L: ≈13.0°F

🌇 4:19 p.m.

Thu. December 18

🌅 7:20 a.m.

H: ≈29.6°F

L: ≈12.7°F

🌇 4:19 p.m.

Fri. December 19

🌅 7:20 a.m.

H: ≈29.4°F

L: ≈12.4°F

🌇 4:20 p.m.

Sat. December 20

🌅 7:21 a.m.

H: ≈29.2°F

L: ≈12.2°F

🌇 4:20 p.m.

Sun. December 21 Winter Solstice

🌅 7:22 a.m.

H: ≈29.0°F

L: ≈11.9°F

🌇 4:21 p.m.

Mon. December 22

🌅 7:22 a.m.

H: ≈28.8°F

L: ≈11.6°F

🌇 4:21 p.m.

Tue. December 23

🌅 7:22 a.m.

H: ≈28.6°F

L: ≈11.4°F

🌇 4:22 p.m.

Wed. December 24 Christmas Eve

🌅 7:23 a.m.

H: ≈28.4°F

L: ≈11.2°F

🌇 4:23 p.m.

Thu. December 25 Christmas Day

🌅 7:23 a.m.

H: ≈28.3°F

L: ≈10.9°F

🌇 4:23 p.m.

Fri. December 26

🌅 7:24 a.m.

H: ≈28.1°F

L: ≈10.7°F

🌇 4:24 p.m.

Sat. December 27

🌅 7:24 a.m.

H: ≈28.0°F

L: ≈10.5°F

🌇 4:25 p.m.

Sun. December 28

🌅 7:24 a.m.

H: ≈27.8°F

L: ≈10.2°F

🌇 4:25 p.m.

Mon. December 29

🌅 7:24 a.m.

H: ≈27.7°F

L: ≈10.0°F

🌇 4:26 p.m.

Tue. December 30

🌅 7:25 a.m.

H: ≈27.6°F

L: ≈9.8°F

🌇 4:27 p.m.

Wed. December 31 New Year's Eve

🌅 7:25 a.m.

H: ≈27.4°F

L: ≈9.6°F

🌇 4:28 p.m.

November January

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

Temperature climatic data from weather station: HOLY HILL 2 E (USC00473702)

Precipitation climatic data from weather station: HOLY HILL 2 E (USC00473702)

Agricultural climatic data from weather station: OCONOMOWOC (USC00476200)