Climatological Report (Daily)
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CDUS45 KTFX 211052
CLIHLN


CLIMATE REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
452 AM MDT THU SEP 21 2017


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

...THE HELENA MT CLIMATE SUMMARY FOR SEPTEMBER 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         54    254 PM  90    1922  71    -17       66
  MINIMUM         40    323 AM  20    1983  42     -2       49
  AVERAGE         47                        56     -9       58

PRECIPITATION (IN)
  YESTERDAY        0.05          1.00 1941   0.03   0.02     0.07
  MONTH TO DATE    1.78                      0.77   1.01     0.56
  SINCE OCT 1     10.03                     10.89  -0.86     8.46
  SINCE JAN 1      7.05                      9.32  -2.27     6.76

SNOWFALL (IN)
  YESTERDAY        0.0           1.4  1968   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.7   -0.7      0.0
  SINCE SEP 1      0.0                       0.7   -0.7      0.0
  SINCE JUL 1      0.0                       1.0   -1.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       18                         9      9        7
  MONTH TO DATE  120                       125     -5      148
  SINCE SEP 1    120                       125     -5      148
  SINCE JUL 1    122                       194    -72      192

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   66                        22     44       12
  SINCE SEP 1     66                        22     44       12
  SINCE JAN 1    702                       405    297      454
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    44   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED     6.1


SKY COVER
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76          1100 AM
 LOWEST     49           600 AM
 AVERAGE    63

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


THE HELENA MT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        90      1967
                                             1966
 MINIMUM TEMPERATURE (F)   41        20      1995


SUNRISE AND SUNSET
SEPTEMBER 21 2017.....SUNRISE   714 AM MDT   SUNSET   727 PM MDT
SEPTEMBER 22 2017.....SUNRISE   715 AM MDT   SUNSET   725 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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