Weather in Fullerton, CA
Fullerton, Friday, 9 October, 08:17
Partly cloudy. Feels like 71°. High 90°, low 69°.
Monthly outlook for Fullerton, CA: average high 83.9°, average low 68.8°. That is 2.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 17 October (94.5°), the coolest 13 October (53.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 82° | 79.6° | +1.3° |
| 19 October – 28 October | 87° | 77.7° | +5.2° |
| 29 October – 7 November | at normal | 74.9° | — |
October records over 66 years
0.04
Fullerton, Saturday, 10 October
Light rain. High 88°, low 65°.
0.72Fullerton, Sunday, 11 October
Heavy rain. High 73°, low 61°.
0.24Fullerton, Monday, 12 October
Light rain. High 67°, low 57°.
0
Fullerton, Tuesday, 13 October
Mostly clear. High 70°, low 53°.
0Fullerton, Wednesday, 14 October
Partly cloudy. High 77°, low 54°.
0
Fullerton, Thursday, 15 October
Clear. High 79°, low 65°.
0Fullerton, Friday, 16 October
Clear. High 92°, low 71°.
0Fullerton, Saturday, 17 October
Clear. High 94°, low 79°.
0Fullerton, Sunday, 18 October
Clear. High 89°, low 78°.
0Fullerton, Monday, 19 October
Clear. High 84°, low 75°.
0Fullerton, Tuesday, 20 October
Clear. High 83°, low 72°.
0Fullerton, Wednesday, 21 October
Clear. High 90°, low 72°.
0Fullerton, Thursday, 22 October
Clear. High 93°, low 77°.
0Fullerton, Friday, 23 October
Clear. High 90°, low 78°.
0
Fullerton, Saturday, 24 October
Overcast. High 83°, low 72°.
0.02Fullerton, Sunday, 25 October
Climate normal for this date — 60-year average.
0.01Fullerton, Monday, 26 October
Climate normal for this date — 60-year average.
0.05Fullerton, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.01Fullerton, Wednesday, 28 October
Climate normal for this date — 60-year average.
0Fullerton, Thursday, 29 October
Climate normal for this date — 60-year average.
0.05Fullerton, Friday, 30 October
Climate normal for this date — 60-year average.
0.02Fullerton, Saturday, 31 October
Climate normal for this date — 60-year average.
0.03Fullerton, Sunday, 1 November
Climate normal for this date — 60-year average.
0.01Fullerton, Monday, 2 November
Climate normal for this date — 60-year average.
0Fullerton, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Fullerton, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.01Fullerton, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Fullerton, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Fullerton, Saturday, 7 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 Fullerton, CA 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 Fullerton, CA 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
59°Weather in Annapolis, MD66°Weather in Atlanta, GA68°Weather in Augusta, ME57°Weather in Austin, TX77°Weather in Baton Rouge, LA80°Weather in Bismarck, ND46°Weather in Boise, ID58°Weather in Boston, MA63°Weather in Carson City, NV61°Weather in Charleston, WV65°Weather in Charlotte Amalie, VI86°Weather in Cheyenne, WY63°Weather in Columbia, SC71°Weather in Columbus, OH63°Weather in Concord, NH59°Weather in Denver, CO65°Weather in Des Moines, IA68°Weather in Dover, DE69°Weather in Frankfort, KY72°Weather in Harrisburg, PA64°Weather in Hartford, CT62°Weather in Helena, MT44°Weather in Honolulu, HI
74°Weather in Indianapolis, IN61°Weather in Jackson, MS73°Weather in Jefferson City, MO62°Weather in Juneau, AK27°Weather in Lansing, MI59°Weather in Lincoln, NE70°Weather in Little Rock, AR72°Weather in Madison, WI57°Weather in Montgomery, AL69°Weather in Montpelier, VT52°Weather in Nashville, TN70°Weather in Oklahoma City, OK76°Weather in Olympia, WA56°Weather in Phoenix, AZ84°Weather in Pierre, SD50°Weather in Providence, RI63°Weather in Raleigh, NC72°Weather in Richmond, VA65°Weather in Sacramento, CA64°Weather in Salem, OR53°Weather in Salt Lake City, UT66°Weather in San Juan, PR89°Weather in Santa Fe, NM58°Weather in Springfield, IL59°Weather in St. Paul, MN58°Weather in Tallahassee, FL73°Weather in Topeka, KS70°Weather in Trenton, NJ66°Weather in Washington, DC67°59°Weather in Reef Station, CA63°Weather in Remnoy, CA61°Weather in Rex, CA61°Weather in Ribbonwood, CA71°Weather in Rich, CA61°Weather in Rico, CA75°Weather in Rimrock, CA69°Weather in Riviera, CA68°Weather in Robles Del Rio, CA58°Weather in Rochester, CA72°Weather in Rockwood, CA76°Weather in Rosemary, CA61°Weather in Rossi, CA61°Weather in Rowen, CA76°Weather in Ruthven, CA77°Weather in Ryan, CA69°Weather in Sablon, CA78°Weather in Sacate, CA61°Weather in Saco, CA70°