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000
CXUS53 KBIS 010850
CLMBIS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
148 AM CST SUN NOV 1 2009
...................................
...THE BISMARCK CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2009...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1875 TO 2009
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 95 10/04/1963
10/01/1953
LOW -10 10/31/1991
10/30/1991
10/26/1919
HIGHEST 80 10/18 76 10/02
LOWEST 21 10/09 19 10/28
10/27
AVG. MAXIMUM 46.4 58.2 -11.8 58.6
AVG. MINIMUM 32.5 32.1 0.4 32.8
MEAN 39.5 45.2 -5.7 45.7
DAYS MAX >= 90 0 0.1 -0.1 0
DAYS MAX <= 32 1 0.7 0.3 0
DAYS MIN <= 32 15 15.3 -0.3 15
DAYS MIN <= 0 0 0.1 -0.1 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 4.30 1982
MINIMUM 0.00 1935
TOTALS 2.21 1.28 0.93 1.73
DAILY AVG. 0.07 0.04 0.03 0.06
DAYS >= .01 15 6.1 8.9 5
DAYS >= .10 7 2.6 4.4 4
DAYS >= .50 1 0.9 0.1 1
DAYS >= 1.00 0 0.3 -0.3 0
GREATEST
24 HR. TOTAL 0.79 10/05 TO 10/06 1.04
SNOWFALL (INCHES)
RECORDS
TOTAL 23.7 1991
TOTALS 0.7 2.3 -1.6 T
SINCE 7/1 0.7 2.5 -1.8 T
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.6 -0.6 0
GREATEST
SNOW DEPTH T 0
24 HR TOTAL 0.6 12 T
DEGREE_DAYS
HEATING TOTAL 783 625 158
SINCE 7/1 929 944 -15
COOLING TOTAL 0 0 0
SINCE 1/1 331 471 -140
.................................................................
WIND (MPH)
HIGHEST WIND SPEED/DIRECTION 33/320 DATE 10/01
HIGHEST GUST SPEED/DIRECTION 44/310 DATE 10/01
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
NUMBER OF DAYS FAIR 6
NUMBER OF DAYS PC 2
NUMBER OF DAYS CLOUDY 23
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 3
LIGHT RAIN 19 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 8 SLEET 0
FOG 15 FOG W/VIS <= 1/4 MILE 0
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
&&
IN SHORT...OCTOBER WAS A COLD AND WET MONTH. THE AVERAGE
TEMPERATURE FOR THE MONTH WAS 39.5 DEGREES...WHICH WAS 5.7
DEGREES BELOW AVERAGE. OVERALL...THE MONTH WILL GO IN THE
BOOKS AS BEING TIED WITH OCTOBER OF 1898 AS BEING THE 5TH
COLDEST IN RECORDED HISTORY AT BISMARCK. THIS UNSEASONABLY
COLD MONTH WAS DUE IN LARGE PART TO A VERY COLD WEATHER
PATTERN THAT SET UP ACROSS THE NORTHERN PLAINS DURING THE
EARLY TO MIDDLE PART OF THE MONTH. THIS PERIOD ACCOUNTED FOR
A MAJORITY OF THE COLD WEATHER...WHEN DAILY TEMPERATURES WERE
AS HIGH AS 15 TO 20 BELOW AVERAGE. HOWEVER...THE MOST NOTABLE
DAY DURING THIS COLD PERIOD WAS ON THE 9TH...WHEN THE MERCURY
FAILED TO GET ABOVE FREEZING. THE AFTERNOON MAXIMUM TEMPERATURE
ONLY MADE IT TO 32 DEGREES...MAKING IT THE COLDEST MAXIMUM
TEMPERATURE FOR THE DATE. IN THE DAYS TO FOLLOW...TEMPERATURES
BEGAN A SLOW MODERATION WHICH INCLUDED A BRIEF RETURN TO
AUTUMN-LIKE WEATHER ON THE 17TH AND 18TH...WITH TEMPERATURES
BRIEFLY TOUCHING 80 DEGREES ON THE 18TH. NEAR AVERAGE TO
SLIGHTLY BELOW AVERAGE TEMPERATURES OCCURRED DURING THE
REMAINDER OF THE MONTH.
PRECIPITATION FOR THE MONTH AT THE AIRPORT TOTALED 2.21 INCHES.
THIS WAS NEARLY AN INCH ABOVE AVERAGE. OVERALL...THE MONTH WAS
THE 13TH WETTEST ON RECORD. THIS OCCURRED AS A COOL AND ACTIVE
WEATHER PATTERN ALLOWED SEVERAL STORM SYSTEMS TO DIRECTLY AFFECT
THE AREA. THE FIRST MEASURABLE SNOWFALL OF THE AUTUMN SEASON
OCCURRED ON THE 11TH...WHEN A TENTH OF AN INCH WAS MEASURED AT
THE WEATHER OFFICE. IN ADDITIONAL 6 TENTHS OF AN INCH OCCURRED
ON THE 12TH BRINGING A TOTAL OF 7 TENTHS OF AN INCH FOR THE MONTH.
&&
KJB
