NORMALS AND MEANS 1971-2000 EXTREMES 1872-PRESENT (UPDATED 6/30/2005) DENVER INTERNATIONAL AIRPORT, CO. LAT 39.52N LON 104.40W ELEV 5431 FT _____________________________________________________________________________ | J | F | M | A | M | J | J | A | S | O | N | D | A NORMALS | A | E | A | P | A | U | U | U | E | C | O | E | V ---------| N | B | R | R | Y | N | L | G | P | T | V | C | G TEMPS |-----|----|----|----|----|----|----|----|----|----|----|-----|----- DAY MAX | 43.2|47.2|53.7|60.9|70.5|82.1|88.0|86.0|77.4|66.0|51.5|44.1 | 64.2 DAY MIN | 15.2|19.1|25.4|34.2|43.8|53.0|58.7|57.4|47.3|35.9|23.5|16.4 | 35.8 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- MONTHLY | 29.2|33.2|39.6|47.6|57.2|67.6|73.4|71.7|62.4|51.0|37.5|30.3 | 50.1 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- EXTREMES | | | | | | |TIED| |TIED| |TIED| | MAX REC HIGH | 76 | 77 | 84 | 90 | 95 | 104| 103| 105| 97 | 90 | 79 | 79 | 105 DAY | 27TH| 4TH|26TH|30TH|26TH|26TH| 8TH| 8TH| 4TH| 1ST|14TH| 5TH | AUG YEAR | 1888|1890|1971|1992|1942|1994|1989|1878| 1ST|1892|1990|1939 | 1878 | | | | | | | 6TH|*MAX|1995| |19TH| | | | | | | | |1973| |MORE| |1989| | ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- EXTREMES | |TIED| | | | |TIED|TIED| | | |TIED | MIN REC LOW | -29 |-25 | -11| -2 | 19 | 30 | 42 | 40 | 17 | -2 | -18| -25 | -29 DAY | 9TH |1ST |28TH| 2ND| 3RD| 2ND| 4TH|26TH|29TH|29TH|29TH|22ND | JAN YEAR | 1875|1951|1886|1975|1907|1951|1903|25TH|1985|1917|1877|1990 | 1875 |*MIN |8TH | | | | |31ST|1910| | | |24TH | | |1936| | | | |1873|MORE| | | |1876 | ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|------ NORMAL | J | F | M | A | M | J | J | A | S | O | N | D |TOTAL DEGREE | A | E | A | P | A | U | U | U | E | C | O | E |SEASN DAYS | N | B | R | R | Y | N | L | G | P | T | V | C |YEAR ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- HEATING |1111 | 892| 788| 524| 267| 60| 1| 9| 136| 436| 826|1078 | 6128 COOLING | 0 | 0 | 0 | 2| 23| 136| 261| 217| 57| 0 | 0 | 0 | 696 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- % POSSIBLE | | | | | | | | | | | | AVG SUNSHINE | 71 | 70 | 69 | 67 | 64 | 70 | 71 | 71 | 74 | 72 | 64 | 67 | 69 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- PRECIP | | | | | | | | | | | | |TOTAL .01 - UP | 5.8 | 5.9 8.6 8.5 10.8 8.7 9.3 8.8 6.3 5.3 5.6 5.3 | 89.1 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- AVG NO. | J | F | M | A | M | J | J | A | S | O | N | D | DAYS | A | E | A | P | A | U | U | U | E | C | O | E | SNO/HAIL | N | B | R | R | Y | N | L | G | P | T | V | C | ICE PELL | | | | | | | | | | | | |TOTAL 1.0 - UP | 2.4 | 2.4| 3.6| 2.5| 0.4| 0.0| 0.0| 0.0| 0.3| 1.2| 2.6| 2.5 | 17.9 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- TSTMS | 0.* | 0.1| 0.3| 1.5| 6.4| 9.9|11.1| 8.3| 3.5| 0.8| 0.1| 0.0 | 41.9 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|----- | J | F | M | A | M | J | J | A | S | O | N | D |TOTAL | A | E | A | P | A | U | U | U | E | C | O | E |SEASN | N | B | R | R | Y | N | L | G | P | T | V | C |YEAR ------------------------------------------------------------------------------ ----------------------------------------------------------------------------- | J | F | M | A | M | J | J | A | S | O | N | D |TOTAL | A | E | A | P | A | U | U | U | E | C | O | E |SEASN | N | B | R | R | Y | N | L | G | P | T | V | C |YEAR ------------------------------------------------------------------------------ F+ VISBY | | | | | | | | | | | | |TOTAL 1/4 LESS| 1.1 | 1.6| 1.1| 0.8| 0.5| 0.*| 0.*| 0.6| 0.6| 0.6| 1.2| 1.1 | 9.9 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|------ MAX TEMPS| | | | | | | | | | | | |TOTAL 90 & UP | 0.0 | 0.0| 0.0| 0.*| 0.*| 6.3|15.0| 9.3| 2.2| 0.0| 0.0| 0.0 | 33.1 32 & LESS| 6.5 | 4.3| 2.8| 0.*| 0.0| 0.0| 0.0| 0.0| 0.*| 0.*| 2.5| 5.3 | 22.2 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|------ MINIMUM | | | | | | | | | | | | |TOTAL 32 & LESS| 29.8|26.0|24.3|11.4| 1.5| 0.0| 0.0| 0.0| 0.8| 8.6|24.4|29.2 |156.1 0 & LESS| 3.8| 1.7| 0.5| 0.*| 0.0| 0.0| 0.0| 0.0| 0.0| 0.0| 0.*| 2.8 | 9.0 ------------------------------------------------------------------------------ ____________________ AVERAGE STATION PRESSURE IN MILLIBARS ___________________ JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANNUAL 834.7|834.7|832.3|833.5|834.4|836.4|838.8|839.1|838.5|837.8|835.3|834.9| AVG HIGHEST STN PRESS 25.71 LOWEST 23.70 (28.83") 835.9 MB = 24.68 INCHES | 835.9 HIGHEST ALTIMETER READING 31.24 INCHES JAN 10 1962 _______________________________________________________________________________ NORMAL |-----|----|----|----|----|----|----|----|----|----|----|-----|------- RH % | JAN | FEB| MAR| APR| MAY| JUN| JUL| AUG| SEP| OCT| NOV| DEC | AVG HOUR 05 | 64 | 67 | 68 | 67 | 71 | 69 | 69 | 70 | 69 | 65 | 68 | 65 | 68 HOUR 11 | 45 | 44 | 42 | 38 | 39 | 37 | 35 | 37 | 38 | 36 | 44 | 45 | 40 HOUR 17 | 49 | 44 | 40 | 35 | 38 | 35 | 34 | 35 | 34 | 35 | 49 | 52 | 40 HOUR 23 | 63 | 65 | 62 | 58 | 61 | 59 | 57 | 59 | 59 | 59 | 65 | 64 | 61 ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|------- WIND-MPH| | | | | | | | | | | | | AVG AVG SPEED| 8.6 |8.8 | 9.7|10.0| 9.3| 8.9| 8.3| 8.0| 7.9| 7.8| 8.2| 8.4 | 8.6 DIRECTION| S | S | S | S | S | S | S | S | S | S | S | S | S ---------|-----|----|----|----|----|----|----|----|----|----|----|-----|------- FAST 1-MIN | | | | | | | | | | | | DIRECTION| 32 | 30 | 30 | 33 | 36 | 21 | 29 | 33 | 29 | 01 | 36 | 32 |FAST SPEED | 44 | 36 | 41 | 46 | 43 | 38 | 46 | 33 | 36 | 36 | 36 | 38 | 46 YEAR | 1982|1989|1991|1993|1983|1987|1993|1989|1988|1992|1987|1981 | 1993 ---------|-----|----|----|FAST|----|----|FAST|----|----|----|----|-----|------- PEAK GUST| JAN | FEB| MAR| APR| MAY| JUN| JUL| AUG| SEP| OCT| NOV| DEC | DIRECTION| W | NW | W | NW | SE | NW | W | NW | NW | NW | W | W |PEAK SPEED | 55 | 52 | 59 | 62 | 60 | 60 | 55 | 75 | 85 | 48 | 49 | 51 | 85 (MPH) | 1993|1990|1989|1986|1991|1988|1993|1877|1995|1990|1990|1990 |1995 ------------------------------------------------------------------------------- _______________________________________________________________________________ RAIN | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC MONTHLY| | | | | | | | | | | | NORMAL | 0.51| 0.49| 1.28| 1.93| 2.32| 1.56| 2.16| 1.82| 1.14| 0.99| 0.98| 0.63 | | | | | | | | ***ANNUAL NORMAL 15.81*** ------------------------------------------------------------------------------- MAXIMUM| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC MONTH |1883 | 1934| 1983| 1900| 1876| 1882| 1965| 1979| 1961| 1969| 1946|1913 PCPN |2.35 | 2.01| 4.56| 8.24| 8.57| 4.96| 6.41| 5.85| 4.67| 4.17| 3.21|5.21 | | | | | MOST| ***ANNUAL RECORD 23.31 IN 1967*** |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____ ------------------------------------------------------------------------------- MINIMUM| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC MONTHLY| .01 | .01 | 0.11| 0.03| 0.06| T | .01 | .02 | T | T | T | .00 YEAR | 1952| 1970| 1908| 1963| 1974| 1890| 1901| 1924| 1944| 1934| 1949|1881 | 1934| | | | | | | | | | | MIN |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____ MAXIMUM| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC 24 HRS | 1.02| 1.01| 2.79| 3.25| 6.53| 3.16| 3.06| 3.43| 2.44| 1.71| 1.29|2.00 | 1962| 1953| 1983| 1967| 1876| 1970| 1997| 1951| 1936| 1947| 1975|1982 | | | | | MOST| | | | | | | _______________________________________________________________________________ MONTHLY| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC SNOW | 7.7 | 6.3 | 11.7| 9.1 | 1.3 | T | 0.0 | 0.0 | 2.1 | 4.1 |10.7 | 8.7 NORMAL | | | | | | | ***ANNUAL NORMAL 61.6*** | -------|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|----- MAXIMUM| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC MONTHLY|24.3 | 22.1| 32.5| 33.8| 15.5| 0.4 | 0.0 | 0.0 | 17.2| 31.2| 42.6|57.4 SNOW/ICE|1992| 1912| 1944| 1933| 1898| 1919| ----| ----| 1936| 1969| 1946|1913 PELLETS| ***ANNUAL RECORD 118.7 IN 1908/09 | MIN | MIN | | | |MOST -------|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|-----|----- MAXIMUM| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC 24 HRS | 14.5| 9.5 | 18.0| 17.3| 10.7| 0.3 | T | T | 16.3| 19.1| 15.9| 23.6 SNOW | 1992| 1953| 1983| 1957| 1950| 1951| 1992| 1991| 1936| 1997| 1983|1982 | | | | | | | | | | | | MOST _______________________________________________________________________________ NOTES: 0.* OR * MEANS THE VALUE IS BETWEEN 0.0 AND 0.4 DATA IS FROM: DOWNTOWN DENVER--------------- 1872 - DEC 1949 STAPLETON AIRPORT------------- JAN 1950 - FEB 1995 DENVER INTERNATIONAL AIRPORT-- MAR 1995 - PRESENT SNOW DATA (STAPLETON AIRPORT)- JAN 1950 - PRESENT NCDC 151 PATTON AVE RM 120 ASHEVILLE, N.C. 28801-2696 PHONE 828-271-4800 FAX 828-271-4876 INTERNET: http://www.ncdc.noaa.gov/ CLIMATE/WEATHER DATA: ncdc.info@noaa.gov E-MAIL: ncdc.info@noaa.gov