easeweather.com
Jefferson County (Lakewood)
Akron (OH)Albuquerque (NM)Alexandria (VA)Anaheim (CA)Anchorage (AK)Arlington (VA)Asheville (NC)Atlanta (GA)Atlantic City (NJ)Austin (TX)Baltimore (MD)Baton Rouge (LA)Birmingham (AL)Boston (MA)Brooklyn (NY)Buffalo (NY)Cape Coral (FL)Charlotte (NC)Chattanooga (TN)Chicago (IL)Cincinnati (OH)Cleveland (OH)Colorado Springs (CO)Columbus (OH)Corpus Christi (TX)Dallas (TX)Dayton (OH)Denver (CO)Des Moines (IA)Detroit (MI)El Paso (TX)Fairbanks (AK)Fort Lauderdale (FL)Fort Wayne (IN)Fort Worth (TX)Gatlinburg (TN)Grand Rapids (MI)Harrisburg (PA)Honolulu (HI)Houston (TX)Huntsville (AL)Indianapolis (IN)Jackson (MS)Jacksonville (FL)Juneau (AK)Kansas City (MO)Ketchikan (AK)Key West (FL)Knoxville (TN)Lakewood (CO)Las Vegas (NV)Lexington (KY)Lincoln (NE)Little Rock (AR)Los Angeles (CA)Louisville (KY)Madison (WI)Manhattan (NY)Memphis (TN)Miami (FL)Milwaukee (WI)Minneapolis (MN)Mobile (AL)Montgomery (AL)Nashville (TN)New Orleans (LA)New York City (NY)Newark (NJ)Norfolk (VA)Oklahoma City (OK)Omaha (NE)Orlando (FL)Philadelphia (PA)Phoenix (AZ)Pittsburgh (PA)Portland (OR)Richmond (VA)Riverside (CA)Sacramento (CA)Salt Lake City (UT)San Antonio (TX)San Diego (CA)San Francisco (CA)San Jose (CA)Savannah (GA)Seattle (WA)Skagway (AK)Springfield (MO)St. Louis (MO)St. Petersburg (FL)Tallahassee (FL)Tampa (FL)Toledo (OH)Traverse City (MI)Tulsa (OK)Tyler (TX)Vancouver (WA)Virginia Beach (VA)WashingtonWichita (KS)Winston-Salem (NC) More Locations
United States weather

Weather in Jefferson County, Colorado for December 2025

Your guide to Jefferson County weather in December - trends and predictions

    Snow Forecast ❄️

  • Jefferson County typically experiences moderate snowfall in December, with an average of 6 snowy days.
    According to Jefferson County snow forecast for December 2025, no snow is expected until the end of the month.

    • Temperatures

  • So far, December 2025 in Jefferson County is slightly warmer than the historical average by 0.7 °F.

  • The forecast for the coming days of December 2025 predicts a temperature of 12.8 °F , which is warmer than usual.

  • In general, the average temperature in Jefferson County at the beginning of December is 8.6 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 9.7 °F by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
25
Dry days
Average rainy days
0
Rainy days
Average snowy days
6
Snow days
Average temperatures
7°/-2°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
56 %
Avg humidity

Jefferson County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
5°
2
Cloudy
6°
3
Patchy moderate snow
6°
4
Overcast
9°
5
Overcast
11°
6
Partly cloudy
12°
7
Partly cloudy
11°
8
Moderate or heavy snow showers
7°
9
Patchy light snow
4°
10
Mist
7°
11
Patchy rain possible
8°
12
Cloudy
6°
13
Light freezing rain
7°
14
Sunny
10°
15
Sunny
11°
16
Sunny
11°
17
Sunny
19°
18
Sunny
7°
19
Partly cloudy
14°
20
Sunny
14°
21
Sunny
15°
22
Sunny
14°
23
Sunny
14°
24
Sunny
16°
25
Sunny
18°
26
Sunny
14°
27
Partly cloudy
12°
28
Sunny
8°
29
Patchy rain possible
9°
30
Sunny
5°
31
Overcast
2°

Temperatures trend during December in Jefferson County

See the weather trend as well as the moving average line

December weather in Jefferson County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 5° /-5° 0 mm 0 cm
Dec. 2 Cloudy
Cloudy
 6° /-5° 0 mm 0 cm
Dec. 3 Patchy moderate snow
Patchy moderate snow
 6° /-4° 6.1 mm 4.4 cm
Dec. 4 Overcast
Overcast
 9° /-5° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 11° /-3° 0 mm 0 cm
Dec. 6 Partly cloudy
Partly cloudy
 12° /-3° 0 mm 0 cm
Dec. 7 Partly cloudy
Partly cloudy
 11° /-4° 0 mm 0 cm
Dec. 8 Moderate or heavy snow showers
Moderate or heavy snow showers
 7° /-2° 1.9 mm 1.6 cm
Dec. 9 Patchy light snow
Patchy light snow
 4° /-5° 1.2 mm 1 cm
Dec. 10 Mist
Mist
 7° /-4° 0 mm 0 cm
Dec. 11 Patchy rain possible
Patchy rain possible
 8° /-1° 0 mm 0 cm
Dec. 12 Cloudy
Cloudy
 6° /-1° 0 mm 0 cm
Dec. 13 Light freezing rain
Light freezing rain
 7° /0° 0.1 mm 0 cm
Dec. 14 Sunny
Sunny
 10° /-1° 0 mm 0 cm
Dec. 15 Sunny
Sunny
 11° /-1° 0 mm 0 cm
Dec. 16 Sunny
Sunny
 11° /-2° 0 mm 0 cm
Dec. 17 Sunny
Sunny
 19° /-1° 0 mm 0 cm
Dec. 18 Sunny
Sunny
 7° /-4° 0 mm 0 cm
Dec. 19 Partly cloudy
Partly cloudy
 14° /-1° 0 mm 0 cm
Dec. 20 Sunny
Sunny
 14° /5° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 15° /2° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 14° /4° 0 mm 0 cm
Dec. 23 Sunny
Sunny
 14° /4° 0 mm 0 cm
Dec. 24 Sunny
Sunny
 16° /4° 0 mm 0 cm
Dec. 25 Sunny
Sunny
 18° /5° 0 mm 0 cm
Dec. 26 Sunny
Sunny
 14° /5° 0 mm 0 cm
Dec. 27 Partly cloudy
Partly cloudy
 12° /4° 0 mm 0 cm
Dec. 28 Sunny
Sunny
 8° /2° 0 mm 0 cm
Dec. 29 Patchy rain possible
Patchy rain possible
 9° /2° 0.2 mm 0 cm
Dec. 30 Sunny
Sunny
 5° /-2° 0 mm 0 cm
Dec. 31 Overcast
Overcast
 2° /-3° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Jefferson County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Jefferson County forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Jefferson County in December - FAQ

What are the expected maximum and minimum temperatures in Jefferson County during December?
Prepare for cooler days with highs just around 7° and colder nights, dipping below -2°.
How much rainfall should be expected in Jefferson County during December?
Expect minimal rainfall in Jefferson County during December, with a total of 11.5 mm over approximately 0 days. This minimal precipitation is unlikely to significantly impact plans.
Will it snow in Jefferson County in December 2025?
Jefferson County experiences an average snowfall of 9.015 cm during December, occurring over 6 days.
What are the typical wind conditions in Jefferson County during December?
The average wind speed in Jefferson County during December is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

Jefferson County snow forecast December 2025

Track daily snowfall levels and discover Jefferson County’s snowy potential this December ❄️
On average, Jefferson County sees 6 snowy days during December, with approximately 9 cm of total snowfall.

December rainfall patterns in Jefferson County

Explore the daily rainfall trends and prepare for Jefferson Countys December weather 💧
Top locations in Jefferson County
Select a location for an accurate weather forecast
BeaumontBirminghamFairfieldLakewoodLouisvilleWatertown
More Locations

Quick links

More Jefferson County weather pages
You are here
Location coordinates Where is Jefferson County?

Get accurate weather forecasts for Jefferson County, located at latitude 39.705 and longitude -105.081. Stay updated with localized weather information tailored for Jefferson County.

Found a mistake?
We appreciate your attention to details. Tell us here.