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Rancho Cucamonga Weather in September, USA

Slide and Tap Other Months

  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

    Temperature

    22°C
    73°F
  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

    28°C
    83°F
  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

    16°C
    62°F
  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

    19°C
    67°F
  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    12 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    27 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall

    7.6 mm

September, 2024

Sun
1 Avg 28º 82º
Mon
2 Avg 27º 81º
Tue
3 Avg 27º 81º
Wed
4 Avg 26º 79º
Thu
5 Avg 26º 79º
Fri
6 Avg 27º 81º
Sat
7 Avg 28º 82º
8 Avg 27º 81º
9 Avg 28º 82º
10 Avg 28º 82º
11 Avg 27º 81º
12 Avg 26º 79º
13 Avg 26º 79º
14 Avg 25º 77º
15 Avg 27º 81º
16 Avg 25º 77º
17 Avg 25º 77º
18 Avg 25º 77º
19 Avg 25º 77º
20 Avg 25º 77º
21 Avg 24º 75º
22 Avg 23º 73º
23 Avg 24º 75º
24 Avg 25º 77º
25 Avg 25º 77º
26 Avg 24º 75º
27 Avg 24º 75º
28 Avg 25º 77º
29 Avg 25º 77º
30 Avg 25º 77º
Forecast
Avg Historical Daily Average