ARVILLA SP, NORTH DAKOTA

Monthly Total Heating Degree Days

(320369)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 196705
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1946 0.00 z 0.00 z 0.00 z 533.00 422.00 107.50 16.50 69.50 292.00 736.50 1211.00 1691.50 5079.50
1947 1589.00 1617.00 1284.50 763.50 455.00 0.00 z 0.00 z 33.00 326.50 0.00 z 0.00 z 0.00 z 6068.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 14.00 28.50 113.00 575.64 b 1117.50 1750.00 3598.64
1949 1957.00 793.50 q 850.50 k 549.83 a 285.50 79.50 19.00 27.00 272.00 609.00 947.00 1808.00 6553.83
1950 2396.00 1683.00 1000.00 l 451.50 p 0.00 z 0.00 z 0.00 z 84.00 q 216.50 587.50 1315.00 1811.90 b 8009.90
1951 1993.00 1500.50 1483.50 775.50 252.50 177.50 39.00 90.50 279.00 k 724.00 1357.50 1812.00 10205.50
1952 1983.50 1384.50 1348.00 522.50 356.50 a 45.50 k 28.00 51.00 77.50 s 706.50 1034.00 1492.50 8907.00
1953 1707.50 1359.00 1192.50 803.28 a 349.00 119.00 30.00 19.00 158.50 m 410.20 c 927.50 1528.00 8444.97
1954 2114.00 1066.07 a 1264.50 762.00 455.18 a 120.52 a 18.00 z 38.00 l 331.50 649.50 973.00 1436.50 9172.78
1955 1445.50 g 1688.50 1583.00 448.00 221.00 80.00 9.50 8.55 b 271.00 560.50 1438.45 a 1931.50 8240.00
1956 1901.00 1769.50 1502.00 368.00 t 187.50 k 39.00 71.00 46.50 367.00 500.65 a 1087.00 1641.50 8925.15
1957 2008.50 1558.50 1235.00 717.41 a 313.10 a 130.50 5.00 58.90 a 323.50 628.02 b 1158.00 1442.00 9578.43
1958 1539.15 a 1556.00 818.50 j 502.00 f 160.00 l 217.00 65.32 c 77.00 243.50 611.70 c 1169.50 1858.28 d 7337.45
1959 2105.02 e 1699.50 598.00 o 711.92 d 415.92 a 80.50 19.00 14.50 g 258.00 e 839.00 1407.78 c 1295.11 d 8831.75
1960 1895.00 1678.65 c 1119.00 j 721.80 e 330.50 99.11 b 5.50 g 18.08 a 161.40 e 600.00 1133.00 1781.43 b 8418.97
1961 1852.52 b 1410.00 1067.90 b 820.38 d 380.00 54.50 29.21 e 0.00 x 267.50 l 615.50 1104.60 e 1886.83 e 9221.44
1962 1316.50 i 1756.22 a 1446.87 e 795.00 d 355.50 94.00 27.50 21.04 c 348.62 a 531.50 1003.00 1519.00 b 7898.24
1963 2003.50 1520.52 e 1102.50 678.00 383.50 60.50 3.00 25.00 137.50 146.00 n 0.00 z 0.00 z 5914.02
1964 1359.50 g 0.00 z 0.00 z 238.00 q 255.00 187.00 2.50 117.50 271.00 601.00 887.00 0.00 z 2321.00
1965 2011.50 1592.89 a 1472.00 700.00 351.00 85.86 a 36.00 85.50 517.50 529.50 1212.00 1450.50 10044.25
1966 2272.50 1676.50 0.00 z 871.00 389.00 94.50 0.00 p 96.50 246.00 622.00 1307.50 1747.00 9322.50
1967 1823.50 1785.00 1276.00 882.00 100.00 w 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5766.50
Period of Record Statistics
MEAN 1950.13 1572.33 1327.56 709.12 351.19 107.44 25.91 51.36 276.27 612.54 1146.86 1660.20 9811.34
S.D. 217.34 180.87 160.44 126.38 69.05 48.03 20.00 32.82 95.13 94.73 164.35 188.52 329.36
SKEW -0.02 -1.23 -0.04 -0.67 -0.28 0.89 0.99 0.50 0.50 0.32 0.20 -0.33 0.00
MAX 2396.00 1785.00 1583.00 882.00 455.18 217.00 71.00 117.50 517.50 839.00 1438.45 1931.50 10044.25
MIN 1539.15 1066.07 1067.90 448.00 221.00 39.00 2.50 8.55 113.00 410.20 887.00 1295.11 9578.43
NO YRS 17 18 13 17 17 17 16 17 17 19 19 18 2