Monthly outlook for Brea Chem, CA: average high 79.3°, average low 63.7°. That is 4.5° above the climate normal for November. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 2 days and 0.9 inches. The warmest day looks like 11 November (89.1°), the coolest 19 November (60.3°).
79.3°/63.7°
Average high / low
+4.5°
Above normal
1 / 2
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 November – 16 November
83°
72.1°
+6°
17 November – 26 November
73.2°
69.7°
+1.9°
27 November – 6 December
at normal
67.2°
—
November records over 66 years
97.2°5 November 2020All-time high
31.5°19 November 1964All-time low
Climate normals and records are computed from the nearest reference point — Placentia (3 mi).
Sun, 0888° / 62°0
88 °
Brea Chem, Sunday, 8 November
Clear. High 88°, low 62°.
Pressure30.00 inHg
Wind3.7 mph E
Humidity14%
Visibility6.2 mi
Dew point29°
Mon, 0989° / 63°0
89 °
Brea Chem, Monday, 9 November
Clear. High 89°, low 63°.
Pressure30.00 inHg
Wind0.9 mph SE
Humidity14%
Visibility6.2 mi
Dew point32°
Tue, 1088° / 62°0
88 °
Brea Chem, Tuesday, 10 November
Clear. High 88°, low 62°.
Pressure30.06 inHg
Wind0.6 mph W
Humidity14%
Visibility6.2 mi
Dew point33°
Wed, 1189° / 63°0
89 °
Brea Chem, Wednesday, 11 November
Clear. High 89°, low 63°.
Pressure30.09 inHg
Wind6.8 mph E
Humidity17%
Visibility—
Dew point31°
Thu, 1284° / 61°0
84 °
Brea Chem, Thursday, 12 November
Clear. High 84°, low 61°.
Pressure29.97 inHg
Wind5.1 mph E
Humidity26%
Visibility—
Dew point38°
Fri, 1379° / 67°0
79 °
Brea Chem, Friday, 13 November
Partly cloudy. High 79°, low 67°.
Pressure29.94 inHg
Wind7.4 mph SW
Humidity34%
Visibility—
Dew point42°
Sat, 1480° / 69°0
80 °
Brea Chem, Saturday, 14 November
Overcast. High 80°, low 69°.
Pressure29.88 inHg
Wind10.4 mph SW
Humidity20%
Visibility—
Dew point31°
Sun, 1575° / 66°0
75 °
Brea Chem, Sunday, 15 November
Clear. High 75°, low 66°.
Pressure30.00 inHg
Wind10.4 mph W
Humidity56%
Visibility—
Dew point54°
Mon, 1673° / 65°0
73 °
Brea Chem, Monday, 16 November
Partly cloudy. High 73°, low 65°.
Pressure30.12 inHg
Wind7.1 mph SW
Humidity45%
Visibility—
Dew point47°
Tue, 1776° / 65°0
76 °
Brea Chem, Tuesday, 17 November
Overcast. High 76°, low 65°.
Pressure30.12 inHg
Wind6.7 mph W
Humidity42%
Visibility—
Dew point46°
Wed, 1873° / 66°0
73 °
Brea Chem, Wednesday, 18 November
Overcast. High 73°, low 66°.
Pressure30.00 inHg
Wind9.1 mph SW
Humidity46%
Visibility—
Dew point48°
Thu, 1966° / 60°0.64
66 °
Brea Chem, Thursday, 19 November
Rain. High 66°, low 60°.
Pressure30.03 inHg
Wind11.3 mph SW
Humidity67%
Visibility—
Dew point51°
Fri, 2073° / 60°0
73 °
Brea Chem, Friday, 20 November
Clear. High 73°, low 60°.
Pressure30.12 inHg
Wind6 mph W
Humidity56%
Visibility—
Dew point49°
Sat, 2176° / 64°0
76 °
Brea Chem, Saturday, 21 November
Partly cloudy. High 76°, low 64°.
Pressure30.09 inHg
Wind5.8 mph W
Humidity27%
Visibility—
Dew point35°
Sun, 2276° / 65°0
76 °
Brea Chem, Sunday, 22 November
Overcast. High 76°, low 65°.
Pressure30.00 inHg
Wind6.9 mph SW
Humidity27%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2369° / 48°0.01
69 °
Brea Chem, Monday, 23 November
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0.01 in
Chance of precipitation5%
Record high89° (2017)
Record low38° (2003)
Tue, 2470° / 47°0.04
70 °
Brea Chem, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high70°
Average low47°
Average precipitation0.04 in
Chance of precipitation12%
Record high83° (1977)
Record low38° (1972)
Wed, 2569° / 47°0.06
69 °
Brea Chem, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.06 in
Chance of precipitation10%
Record high91° (1977)
Record low36° (2010)
Thu, 2669° / 48°0.07
69 °
Brea Chem, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0.07 in
Chance of precipitation13%
Record high87° (1977)
Record low35° (2010)
Fri, 2768° / 47°0.04
68 °
Brea Chem, Friday, 27 November
Climate normal for this date — 60-year average.
Average high68°
Average low47°
Average precipitation0.04 in
Chance of precipitation12%
Record high88° (2014)
Record low35° (1994)
Sat, 2868° / 46°0.09
68 °
Brea Chem, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high68°
Average low46°
Average precipitation0.09 in
Chance of precipitation18%
Record high86° (1977)
Record low35° (1976)
Sun, 2967° / 46°0.13
67 °
Brea Chem, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.13 in
Chance of precipitation18%
Record high83° (1977)
Record low34° (2010)
Mon, 3067° / 46°0.07
67 °
Brea Chem, Monday, 30 November
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.07 in
Chance of precipitation22%
Record high83° (1977)
Record low34° (2004)
Tue, 0167° / 45°0.02
67 °
Brea Chem, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.02 in
Chance of precipitation7%
Record high80° (1977)
Record low33° (2004)
Wed, 0267° / 45°0.04
67 °
Brea Chem, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high67°
Average low45°
Average precipitation0.04 in
Chance of precipitation13%
Record high79° (1977)
Record low34° (2004)
Thu, 0367° / 46°0.09
67 °
Brea Chem, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.09 in
Chance of precipitation13%
Record high80° (1979)
Record low35° (2004)
Fri, 0467° / 46°0.1
67 °
Brea Chem, Friday, 4 December
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.1 in
Chance of precipitation18%
Record high84° (1979)
Record low34° (2011)
Sat, 0567° / 46°0.08
67 °
Brea Chem, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.08 in
Chance of precipitation18%
Record high86° (1979)
Record low36° (1983)
Sun, 0667° / 46°0.14
67 °
Brea Chem, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high67°
Average low46°
Average precipitation0.14 in
Chance of precipitation15%
Record high83° (1979)
Record low34° (2011)
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 Brea Chem, 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 Brea Chem, 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.