Table 5.5-2. Monthly and annual averages and maximums of total daily solar radiation (megajoules/square meter) for RTMS stations.

                CFA(a)      SMC(a)      MFC(a)      IDA(b)
               Avg  Max    Avg  Max    Avg  Max    Avg  Max

Jan            7.0 11.8    6.9 11.8    6.7 12.0    5.4 12.6
Feb           11.2 18.0   10.9 18.1   10.7 17.5    9.1 17.0
Mar           15.9 24.1   15.5 24.6   15.5 25.2   14.0 23.3
Apr           19.8 30.3   19.7 30.3   19.4 31.4   18.4 28.8
May           23.6 34.0   23.0 33.1   23.1 33.7   22.7 34.0
Jun           27.1 35.8   26.2 34.8   26.5 36.2   26.2 35.0
Jul           27.9 35.0   26.8 33.1   26.9 34.7   27.0 33.5
Aug           24.1 32.6   22.9 30.0   23.0 31.9   23.0 31.7
Sep           19.1 28.1   18.2 25.1   18.2 26.3   17.8 25.8
Oct           13.0 20.3   12.4 19.5   12.4 19.2   11.5 19.1
Nov            8.0 14.0    7.8 13.3    7.6 13.1    6.8 13.4
Dec            5.7 10.1    5.6  9.7    5.3  9.4    4.4  9.3

Annual        16.9 35.8   16.4 34.8   16.4 36.2   15.6 35.0

a. Data period of record spans April 1996 through December 2022.
b. Data period of record spans April 1997 through December 2022.