Climatological Report (Daily)
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000
CDUS45 KTFX 210855
CLIHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
255 AM MDT SAT OCT 21 2017


...................................

...THE HELENA MT CLIMATE SUMMARY FOR OCTOBER 20 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1866 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         67   1214 AM  80    1921  57     10       60
  MINIMUM         41   1159 PM  18    1995  31     10       32
  AVERAGE         54                        44     10       46

PRECIPITATION (IN)
  YESTERDAY        0.00          0.24 1971   0.02  -0.02     0.00
  MONTH TO DATE    0.43                      0.48  -0.05     1.14
  SINCE OCT 1      0.43                      0.48  -0.05     1.14
  SINCE JAN 1      7.62                     10.13  -2.51     8.31

SNOWFALL (IN)
  YESTERDAY        0.0           3.5  1981   0.1   -0.1      0.0
  MONTH TO DATE    1.2                       1.4   -0.2      1.0
  SINCE SEP 1      1.2                       2.7   -1.5      1.0
  SINCE JUL 1      1.2                       3.0   -1.8      1.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       11                        21    -10       19
  MONTH TO DATE  376                       344     32      354
  SINCE SEP 1    644                       581     63      564
  SINCE JUL 1    646                       650     -4      608

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE SEP 1     66                        23     43       13
  SINCE JAN 1    702                       406    296      455
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    40   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    55   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    15.7


SKY COVER
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70           100 PM
 LOWEST     15          1200 AM
 AVERAGE    43

..........................................................


THE HELENA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   57        82      2003
 MINIMUM TEMPERATURE (F)   31        15      1984
                                             1981


SUNRISE AND SUNSET
OCTOBER 21 2017.......SUNRISE   754 AM MDT   SUNSET   630 PM MDT
OCTOBER 22 2017.......SUNRISE   756 AM MDT   SUNSET   628 PM MDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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