Monthly outlook for Dayton Avenue, CA: average high 91°, average low 74.8°. That is 1.7° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 24 August (98.3°), the coolest 14 August (67.7°).
91°/74.8°
Average high / low
+1.7°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
88.2°
88.1°
+0°
19 August – 28 August
95.7°
88.5°
+4°
29 August – 7 September
at normal
89.8°
—
August records over 66 years
106.9°15 August 2020All-time high
51.8°22 August 1968All-time low
Climate normals and records are computed from the nearest reference point — South Pasadena (4 mi).
Mon, 1096° / 69°0
96 °
Dayton Avenue, Monday, 10 August
Mostly clear. High 96°, low 69°.
Pressure29.91 inHg
Wind6.4 mph SW
Humidity33%
Visibility6.2 mi
Dew point56°
Tue, 1188° / 74°0
88 °
Dayton Avenue, Tuesday, 11 August
Overcast. High 88°, low 74°.
Pressure29.97 inHg
Wind7.9 mph SW
Humidity31%
Visibility6.2 mi
Dew point53°
Wed, 1286° / 71°0
86 °
Dayton Avenue, Wednesday, 12 August
Mostly clear. High 86°, low 71°.
Pressure29.88 inHg
Wind7.6 mph SW
Humidity38%
Visibility6.2 mi
Dew point57°
Thu, 1383° / 69°0
83 °
Dayton Avenue, Thursday, 13 August
Clear. High 83°, low 69°.
Pressure29.91 inHg
Wind9.4 mph SW
Humidity51%
Visibility—
Dew point57°
Fri, 1483° / 68°0
83 °
Dayton Avenue, Friday, 14 August
Overcast. High 83°, low 68°.
Pressure29.97 inHg
Wind9.9 mph SW
Humidity48%
Visibility—
Dew point55°
Sat, 1585° / 70°0
85 °
Dayton Avenue, Saturday, 15 August
Overcast. High 85°, low 70°.
Pressure30.00 inHg
Wind9.2 mph SW
Humidity41%
Visibility—
Dew point53°
Sun, 1684° / 71°0.02
84 °
Dayton Avenue, Sunday, 16 August
Light rain. High 84°, low 71°.
Pressure30.06 inHg
Wind9.8 mph SW
Humidity46%
Visibility—
Dew point57°
Mon, 1790° / 74°0
90 °
Dayton Avenue, Monday, 17 August
Partly cloudy. High 90°, low 74°.
Pressure30.03 inHg
Wind10.9 mph SW
Humidity38%
Visibility—
Dew point56°
Tue, 1891° / 76°0
91 °
Dayton Avenue, Tuesday, 18 August
Partly cloudy. High 91°, low 76°.
Pressure29.94 inHg
Wind11.1 mph SW
Humidity34%
Visibility—
Dew point55°
Wed, 1995° / 79°0
95 °
Dayton Avenue, Wednesday, 19 August
Light rain. High 95°, low 79°.
Pressure29.88 inHg
Wind9.8 mph SW
Humidity29%
Visibility—
Dew point55°
Thu, 2096° / 80°0
96 °
Dayton Avenue, Thursday, 20 August
Overcast. High 96°, low 80°.
Pressure29.91 inHg
Wind9.4 mph SW
Humidity39%
Visibility—
Dew point59°
Fri, 2194° / 81°0
94 °
Dayton Avenue, Friday, 21 August
Clear. High 94°, low 81°.
Pressure29.85 inHg
Wind9.1 mph SW
Humidity33%
Visibility—
Dew point57°
Sat, 2296° / 80°0
96 °
Dayton Avenue, Saturday, 22 August
Light rain. High 96°, low 80°.
Pressure29.88 inHg
Wind8.7 mph SW
Humidity34%
Visibility—
Dew point56°
Sun, 2395° / 80°0
95 °
Dayton Avenue, Sunday, 23 August
Partly cloudy. High 95°, low 80°.
Pressure29.91 inHg
Wind9 mph SW
Humidity35%
Visibility—
Dew point58°
Mon, 2498° / 82°0
98 °
Dayton Avenue, Monday, 24 August
Clear. High 98°, low 82°.
Pressure29.88 inHg
Wind9.5 mph SW
Humidity33%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2589° / 64°0
89 °
Dayton Avenue, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high106° (1985)
Record low55° (1978)
Wed, 2690° / 64°0
90 °
Dayton Avenue, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high90°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high105° (1981)
Record low54° (1990)
Thu, 2791° / 64°0
91 °
Dayton Avenue, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high91°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high105° (1981)
Record low53° (1973)
Fri, 2891° / 65°0
91 °
Dayton Avenue, Friday, 28 August
Climate normal for this date — 60-year average.
Average high91°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high105° (1981)
Record low55° (1973)
Sat, 2991° / 65°0
91 °
Dayton Avenue, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high91°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high106° (1967)
Record low55° (1964)
Sun, 3090° / 65°0
90 °
Dayton Avenue, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high90°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high107° (1967)
Record low55° (2010)
Mon, 3189° / 64°0
89 °
Dayton Avenue, Monday, 31 August
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation3%
Record high105° (2017)
Record low55° (2010)
Tue, 0189° / 64°0
89 °
Dayton Avenue, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation2%
Record high105° (2002)
Record low54° (1973)
Wed, 0290° / 65°0.02
90 °
Dayton Avenue, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high90°
Average low65°
Average precipitation0.02 in
Chance of precipitation3%
Record high107° (1982)
Record low52° (1964)
Thu, 0390° / 65°0.01
90 °
Dayton Avenue, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high90°
Average low65°
Average precipitation0.01 in
Chance of precipitation5%
Record high110° (1988)
Record low55° (1999)
Fri, 0491° / 65°0
91 °
Dayton Avenue, Friday, 4 September
Climate normal for this date — 60-year average.
Average high91°
Average low65°
Average precipitation0 in
Chance of precipitation2%
Record high110° (1988)
Record low56° (1999)
Sat, 0590° / 65°0.02
90 °
Dayton Avenue, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high90°
Average low65°
Average precipitation0.02 in
Chance of precipitation3%
Record high112° (2020)
Record low56° (1970)
Sun, 0690° / 65°0.01
90 °
Dayton Avenue, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high90°
Average low65°
Average precipitation0.01 in
Chance of precipitation2%
Record high112° (2024)
Record low55° (1987)
Mon, 0789° / 64°0
89 °
Dayton Avenue, Monday, 7 September
Climate normal for this date — 60-year average.
Average high89°
Average low64°
Average precipitation0 in
Chance of precipitation0%
Record high103° (2024)
Record low53° (1964)
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 Dayton Avenue, 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 Dayton Avenue, 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.