Weather in Jefferson, CO
Jefferson, Monday, 19 October, 09:25
Mostly clear. Feels like 42°. High 53°, low 32°.
Monthly outlook for Jefferson, CO: average high 47.1°, average low 30.2°. That is 2.5° above the climate normal for October. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 20 October (54.5°), the coolest 24 October (27.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 48.5° | 44.7° | +2.1° |
| 29 October – 7 November | 44.7° | 39° | +3.2° |
| 8 November – 17 November | at normal | 35.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Como (6 mi).
0
Jefferson, Tuesday, 20 October
Overcast. High 55°, low 37°.
0.01
Jefferson, Wednesday, 21 October
Light rain. High 50°, low 33°.
0.17Jefferson, Thursday, 22 October
Light rain. High 47°, low 33°.
0.08Jefferson, Friday, 23 October
Light rain. High 50°, low 33°.
0.17
Jefferson, Saturday, 24 October
Snow. High 35°, low 27°.
0.03Jefferson, Sunday, 25 October
Light snow. High 47°, low 28°.
0Jefferson, Monday, 26 October
Overcast. High 50°, low 30°.
0
Jefferson, Tuesday, 27 October
Clear. High 49°, low 28°.
0Jefferson, Wednesday, 28 October
Overcast. High 51°, low 28°.
0Jefferson, Thursday, 29 October
Overcast. High 49°, low 30°.
0.07Jefferson, Friday, 30 October
Snow. High 42°, low 32°.
0Jefferson, Saturday, 31 October
Light snow. High 44°, low 29°.
0Jefferson, Sunday, 1 November
Overcast. High 47°, low 29°.
0.01Jefferson, Monday, 2 November
Light rain. High 45°, low 29°.
0.2Jefferson, Tuesday, 3 November
Snow. High 42°, low 29°.
0.02Jefferson, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03
Jefferson, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Jefferson, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Jefferson, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05
Jefferson, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Jefferson, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Jefferson, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Jefferson, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Jefferson, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Jefferson, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Jefferson, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Jefferson, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Jefferson, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Jefferson, Tuesday, 17 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Jefferson, CO are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Jefferson, CO since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
51°Weather in Annapolis, MD56°Weather in Atlanta, GA56°Weather in Augusta, ME50°Weather in Austin, TX60°Weather in Baton Rouge, LA63°Weather in Bismarck, ND38°Weather in Boise, ID45°Weather in Boston, MA54°Weather in Carson City, NV48°Weather in Charleston, WV57°Weather in Charlotte Amalie, VI84°Weather in Cheyenne, WY42°Weather in Columbia, SC55°Weather in Columbus, OH55°Weather in Concord, NH51°Weather in Denver, CO51°Weather in Des Moines, IA53°Weather in Dover, DE57°Weather in Frankfort, KY58°Weather in Harrisburg, PA53°Weather in Hartford, CT52°Weather in Helena, MT33°Weather in Honolulu, HI75°Weather in Indianapolis, IN55°Weather in Jackson, MS59°Weather in Jefferson City, MO51°Weather in Juneau, AK36°Weather in Lansing, MI54°Weather in Lincoln, NE53°Weather in Little Rock, AR59°Weather in Madison, WI53°Weather in Montgomery, AL56°Weather in Montpelier, VT53°Weather in Nashville, TN56°Weather in Oklahoma City, OK58°Weather in Olympia, WA41°Weather in Phoenix, AZ68°Weather in Pierre, SD39°Weather in Providence, RI54°Weather in Raleigh, NC55°Weather in Richmond, VA56°Weather in Sacramento, CA53°Weather in Salem, OR46°Weather in Salt Lake City, UT55°Weather in San Juan, PR88°Weather in Santa Fe, NM51°Weather in Springfield, IL54°Weather in St. Paul, MN51°Weather in Tallahassee, FL63°Weather in Topeka, KS54°Weather in Trenton, NJ55°Weather in Washington, DC58°47°Weather in Peabodys, CO40°Weather in Bordenville, CO41°Weather in Snow Water Springs, CO50°Weather in Trumbull, CO50°Weather in Oxyoke, CO49°Weather in Nighthawk, CO49°Weather in Twin Cedars, CO49°Weather in Moonridge, CO45°Weather in Sprucewood, CO46°Weather in Pike-San Isabel Village, CO44°Weather in Platte Springs, CO50°Weather in Hermosa, CO51°Weather in Rockwood, CO48°Weather in Columbus, CO49°Weather in Grandview, CO49°Weather in Piñon Acres, CO51°Weather in Loma Linda, CO51°Weather in Stollsteimer, CO56°Weather in La Boca, CO56°