Investor Presentaiton
L
Appendix 51
Weather (Full Year)
Full Year 2020 as compared with:
Historic
Average
4% warmer
Heating Degree - Days
YTD thru 12/31 Degree Days
2020
2019
Historic
Average
Montana
7,505
8,647
7,819
South Dakota
7,445
8,478
7,702
Nebraska
5,676
6,571
6,359
2019
13% warmer
12% warmer
14% warmer
3% warmer
11% warmer
Cooling Degree-Days
2020
2019
YTD thru 12/31 Degree Days
Historic
Average
Montana
South Dakota
398
370
405
2019
8% warmer
879
715
734
23% warmer
Full Year 2020 as compared with:
Historic
Average
2% cooler
20% warmer
Difference from Average Temperatures
We estimate overall
unfavorable
weather in 2020
resulted in a $9.8
million pretax
detriment as
compared to normal
and a $17.1 million
detriment as
compared to 2019.
January 2020
February 2020
March 2020
April 2020
May 2020
June 2020
July 2020
August 2020
September 2020
October 2020
November 2020
December 2020
-15
-12
12
15
Degrees Fahrenheit from AverageView entire presentation