BULLFROG BASIN, UTAH

Period of Record General Climate Summary - Growing Degree Days

Station:(421020) BULLFROG BASIN
From Year=1967 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	25	90	308	520	871	1160	1404	1317	1003	623	219	27	7565
40 S	25	115	422	942	1813	2972	4376	5693	6697	7319	7538	7565	7565
45 M	4	29	178	373	716	1010	1249	1162	853	469	111	5	6159
45 S	4	33	211	584	1300	2310	3559	4721	5574	6043	6154	6159	6159
50 M	0	6	84	238	562	860	1094	1007	703	322	43	1	4920
50 S	0	6	91	329	891	1750	2844	3851	4555	4877	4920	4920	4920
55 M	0	1	30	129	412	710	939	852	553	190	9	0	3826
55 S	0	1	31	160	572	1282	2221	3073	3626	3816	3826	3826	3826
60 M	0	0	7	53	273	560	784	697	405	89	1	0	2869
60 S	0	0	7	60	333	893	1677	2374	2779	2868	2869	2869	2869

Corn Growing Degree Days
50 M	20	63	200	327	554	732	883	845	650	381	134	20	4809
50 S	20	83	283	610	1164	1897	2780	3624	4274	4655	4789	4809	4809

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu