STATE OF MONTANA 



17 



CLIMATE DATA 



Precipitation and Number of Days Between Freezing Temperatures — 1970 and 1971 



1970 



COUNTY & 



DISTRICT STATIONS 



Deer Lodge East Anaconda 11.48 



Flathead Kalispell 17.37 



Granite Phillipsburg 12.64 



Lake St. Ignatius 22.07 



Lincoln Fortine 15.70 



Mineral Superior 17.96 



Missoula Missoula 15.08 



Powell Ovando 17.68 



Ravalli Hamilton 14.06 



Sanders Thompson Falls. ...23.85 



N. WEST Averages'. 



..21.98 



Blaine Chinook 13.34 



Chouteau Ft. Benton 14.62 



Glacier Cut Bank 12.13 



Hill Havre 11.84 



Libertv Joplin IN 15.35 



Phillips Malta 13.48 



Pondera Valier 14.89 



Teton Fairfield 9.73 



Toole Dunkirk 10.71 



N. CENTRAL .\verages» 14.96 



Daniels Scobey 14.21 



Dawson Glendive 16.82 



Garfield Jordan 13.64 



McCone V'ida 17.62 



Richland ..Savage 17.06 



Roosevelt Culbertson 16.00 



Sheridan Medicine Lake 18.07 



Valley Glasgow 10.25 



Precipitation, Inches 



.\nnual 



Growing Season 

 .\pril through Septemljer 



1971 



8.73 

 16.47 

 11.77 

 15.83 

 17.86 

 19.97 

 13.12 

 15.15 

 12.15 

 25.68 



21.16 



9.34 

 9.56 



11.53 

 8.05 

 7.24 

 8.02 



10..30 

 8.90 

 7.35 



10.52 



6.98 

 20.58 

 12.88 

 11. a3 

 16.52 

 17.07 

 13.34 



6.90 



Normal 1970 



8.14 

 8.27 

 8.98 

 13.77 

 7.98 

 7.63 

 7.90 

 8.96 

 7.67 

 9.57 



13.22 

 15.42 

 14.97 

 15.10 

 17.63 

 16.35 

 12.83 

 15.95 

 12.22 

 20.80 



18.66 



12.52 

 14.57 

 11.53 

 11.89 

 10.91 

 11.84 

 12.76 

 11.72 

 11.61 



12.56 



13.72 

 12.73 

 10.31 

 15.24 

 13.41 

 12.84 

 12.77 

 12.27 



9.73 



10.16 



10.17 



9.69 



9. .32 



12.37 



11.31 



12.10 



7.76 



7.97 



11.33 



11.14 

 13.98 

 11.49 

 13.43 

 14.74 

 12.43 

 15.20 

 8.25 



1971 



5.94 

 9.06 

 8.38 

 9.95 

 9.73 

 9.22 

 6.92 

 5.96 

 6.48 

 9.52 



9.01 



5.62 

 6.18 

 9.20 

 3.92 

 5.27 

 5.64 

 7.64 

 6.99 

 5.33 



7.04 



4.12 



12.83 



7.73 



5.10 



10.62 



11.16 



8.50 



4.05 



8.43 

 8.09 

 9.74 

 9.31 

 9.19 

 7.57 

 7.34 

 7.80 

 6.67 

 8.18 



8.57 



9.25 

 10.13 

 9.12 

 8.61 

 9.03 

 8.84 

 10.26 

 9.32 

 8.88 



9.51 



10.47 



9.91 



7.81 



10.81 



10.82 



10.26 



10..35 



9.26 



Number of Days 



Between Dates ol 



Temperature of 



.32°, Last in 



Spring and 



First in Fall' 



Normal' 1970 



121 

 121 



57 

 123 



93 

 119 

 119 



75 

 121 

 122 



122 

 121 

 115 

 122 

 120 

 122 

 120 

 119 

 103 



121 

 135 

 120 

 120 

 121 

 120 

 120 

 133 



1971 



118 



21 



3 



114 



115 



115 



47 



3 



00 



115 



123 

 123 

 118 

 123 

 117 

 122 

 122 



115 



122 

 162 

 117 

 123 

 142 

 118 

 121 

 141 



116 

 135 



55 

 119 



39 



85 

 112 



39 

 122 

 115 



119 

 127 

 108 

 138 

 115 

 131 

 114 



104 



116 

 139 

 108 



131 

 114 

 107 

 124 



N. EAST Averages' 14.34 



Broadwater Townsend 10.55 



Cascade Great Falls 15.34 



Fergus Lewistown 17.98 



Golden Valley Barber 13.91 



Judith Basin Stanford 15.88 



Lewis & Clark. ...Helena 9.74 



Meagher White Sul. Spgs.... 9.61 



Musselshell Roundup 12.20 



Petroleum Flatwillow 15.15 



Wheatland Harlowton 13.81 



CENTRAL Averages' . 



.14.54 



Beaverhead Dillon 1 1.65 



Gallatin Bozeman 19.64 



Jefferson Whitehall 10.71 



Madison Virginia City 18.77 



Silver Bow Butte 10.84 



S. WEST .\verages' 17.87 



Big Horn Crow Agencv 17.58 



Carbon Red Lodge 30.07 



Park Livingston 19.54 



Stillwater Columbus 14.41 



Sweet Grass Big Timber 17.69 



Treasure Hvsham 1.3.93 



Yellowstone Billings 16.09 



S. CENTRAL Averages'. 



.18.01 



Carter Ekalaka 14.33 



Custer Miles City 15.18 



Fallon Plevna 16.32 



Powder River Broadus 13.67 



Prairie Mildred 13.84 



Rosebud Forsyth 13.04 



Wibaux Wibaux 20.59 



11.69 



8.87 

 11.48 

 14.37 

 12.49 

 13.82 

 10.12 

 8.45 

 9.06 

 14.16 

 12.77 



12.27 



8.36 

 15.97 



9.42 

 14.70 

 10.40 



15.69 



18.06 

 28.74 

 16.27 

 15.44 

 16.33 

 15.90 

 14.79 



17.02 



26.95 

 18.72 

 20.04 



18.17 

 20.60 

 17.06 



17.47 



12.64 



10.81 

 14.07 

 16.52 

 12., 53 

 14.96 

 10.85 

 18.46 

 10.93 

 12.57 

 12.74 



14.12 



11.34 



17.38" 



9.63 



13.95 



11.48 



14.41 



14.44 

 20.02 

 13..38 

 13.26 

 14.36 

 11.99 

 13.23 



14.49 



13.22 

 12.17 

 12.60 

 13.88 

 12..36 

 12.07 

 13.80 



11.79 



7.48 



9.96 



11.67 



10.21 



11.56 



6.04 



7.13 



9.33 



12.28 



9.73 



10.33 



9.97 

 12.80 



8.56 

 13.67 



7.44 



11.42 



10.86 

 18.66 

 15.25 

 10.66 

 12.05 

 8.91 

 10.63 



12.03 



10.12 

 10.30 

 14.40 



9.49 

 11.79 



9.94 

 17.73 



6.99 



5.37 

 6.35 

 7.87 

 8.78 

 9.26 

 5.95 

 5.18 

 4.91 

 7.72 

 9.02 



7.62 



6.80 

 11.28 

 6.74 

 9.90 

 6.82 



9.58 



7.89 

 13.34 

 12.59 



9.32 

 10.46 



7.31 



7.00 



8.92 



18.22 

 7.65 



11.71 

 8.71 



11.61 

 8.82 



11.21 



S. EAST .Averages' 15.03 17.82 12.79 11.15 9.21 



' In this comparison the "first in fall" is the first freezing temperature after June 30. 



' Normal for period 1931-1960. 



' Average of all stations including some which are not listed on this table. 



* Average for Whitehall airport 1938-1959. 



9.91 



7.99 

 9.72 



12.02 

 9.68 



11.19 

 7.49 



11.19 

 8.22 

 9.53 

 9.81 



9.90 



8.12 

 10.90" 

 7..52 

 9.53 

 8.33 



9.11 



9.32 

 13.39 

 9.09 

 9.51 

 10.06 

 8.72 

 8.73 



9.77 



10.32 

 9.04 

 9.70 



10.31 

 9.56 

 9.36 



11.41 



9.46 



119 

 121 

 U8 

 120 

 117 

 119 

 102 

 122 

 122 

 118 



120 

 120 

 102 

 108 



117 



121 

 90 

 121 

 119 

 134 

 121 

 135 



120 

 135 

 120 

 121 

 120 

 135 

 120 



118 

 147 

 122 

 130 



74 

 117 



77 

 1.30 

 123 

 114 



115 



118 



5 



104 



121 

 114 

 144 



130 

 130 

 144 



119 

 143 

 122 

 117 

 114 

 143 

 121 



135 

 107 

 108 

 104 

 134 



97 

 129 

 122 



96 



99 

 107 



94 



81 



125 

 104 

 116 



123 

 121 

 132 



122 

 150 

 118 

 128 

 119 

 130 



