No. 2 1971-2 Asheville, North Carolina 2881 COOP ID: 4792 Climate Division: CA 6 NWS Call Sign: Month (1) Min (2) Month(1) Extremes Lowest (2) Temperature ( F) Lowest Month(1) Degree s (1) Base Temp 65 Heating Cooling 1 Number of s (3) Jan 64.5 44.7 54.6 89 1962 7 58.1 1986 2+ 1949 1 49.7 1972 324.. 31...3. Feb 65.4 46.7 56.1 89+ 1995 2 6.6 1995 27+ 1949 12 51.7 199 253 2.. 28...1. Mar 66.1 48.3 57.2 96 1988 26 61.1 1988 3 1953 3 52.9 1991 248 6..1 31.. @. Apr 69.2 5.1 59.7 11 1989 6 63.5 1996 3 197 28 55. 1975 172 13 @.3 3.... May 69.6 53. 61.3 11 1968 26 66.8 1997 36 1991 2 58.1 1971 142 28..2 31.... Jun 72.1 55.8 64. 13+ 199 27 69. 1981 42+ 1943 13 6.2 1991 8 48.1.5 3.... Jul 75.1 58.6 66.9 18 1937 1 7.2 1984 44 1948 6 64.2 1991 26 82.1.1 31.... Aug 76.7 59.5 68.1 99 1978 1 72.2 1984 46 1993 13 65.6+ 1999 24 12..4 31.... Sep 75.2 58.5 66.9 15+ 1978 25 74.1 1984 38 1948 26 63.1 1993 55 111.1.7 3.... Oct 73.3 54.9 64.1 13 195 13 67.7 1997 34 1935 31 6.3 1971 73 46 @.8 31.... Nov 68.9 49. 59. 97+ 1956 1 63.2 1976 28 1931 24 54.9 1994 193 11..2 3.... Dec 65.3 44.7 55. 92 1958 3 59.2 1977 25 1948 25 49.3 1971 312 3.. 3.9..5. 9 5 <= 32 Min <= 32 Min <= Ann 7.1 52. 61.1 18 Jul 1937 1 74.1 Sep 1984 2+ Jan 1949 1 49.3 Dec 1971 192 47.3 3.3 364.9..9. + Also occurred on an earlier date(s) (1) From the 1971-2 Monthly Normals @ Denotes mean number of days greater than but less than.5 (2) Derived from station s available digital record: 1927-21 Complete documentation available from: /oa/climate/normals/usnormals.html (3) Derived from 1971-2 serially complete daily data Issue Date: February 24 26-A
No. 2 1971-2 Asheville, North Carolina 2881 COOP ID: 4792 Climate Division: CA 6 NWS Call Sign: Precipitation (inches) Month s/ Medians(1) Median (2) Precipitation Totals Extremes Monthly(1) Lowest Monthly(1).1 Number of s (3) Precipitation.1.5 1. Precipitation Probabilities (1) Probability that the monthly/annual precipitation will be equal to or less than the indicated amount Monthly/Annual Precipitation vs Probability Levels These values were determined from the incomplete gamma distribution.5.1.2.3.4.5.6.7.8.9.95 Jan 4.14 2.41 8. 1995 4 24.2 1995.+ 1984 7.1 5.1 2.7 1.3...71 1.38 2.1 2.92 3.9 5.14 6.83 9.69 12.52 Feb 4.68 2.86 3.65 1945 2 21.76 1998.+ 1982 6.3 4.9 3.1 1.7..18.76 1.43 2.2 3.12 4.24 5.68 7.72 11.2 14.7 Mar 3.59 3.5 3.8 1952 15 11.73 1978.+ 1997 6.5 4.7 2.3 1.1...7 1.29 1.92 2.62 3.46 4.5 5.89 8.26 1.57 Apr.77.32 3.3 2 17 3.97 1988.+ 1997 2.9 1.7.5.2...2.1.21.37.57.86 1.3 2.8 2.89 May.35.2 1.66 1949 18 2.96 1977.+ 2 1.4.6.3.1......1.8.22.5.99 1.64 Jun.9.1 1.13 1963 11.71 1993.+ 1997.9.2 @........2.7.14.28.43 Jul.1..63 195 9.13 1987.+ 2.4 @...........1.4.7 Aug.3..7 1936 9.5 1977.+ 2.5.2.1..........1.11.23 Sep.29.2 1.9 1976 11 4.1 1976.+ 1996 1.2.3.2.1......1.5.17.41.84 1.43 Oct.52.13 2.74 1996 29 3.8 2.+ 1999 1.7.9.3.2......1.28.53.92 1.6 2.32 Nov 1.48 1.7 3.49 1965 16 5.47 1972.+ 2 3.8 2.6 1.1.5...17.38.62.93 1.3 1.79 2.48 3.68 4.89 Dec 2.63 1.71 5.32 1977 28 7.33 1971. 1989 4.9 3. 1.7.8.2.1.34.66 1.6 1.57 2.22 3.9 4.35 6.58 8.86 Ann 18.58 16.74 8. Jan 1995 4 24.2 Jan 1995.+ Nov 2 37.6 24.2 12.3 6. 6.6 8.35 1.88 13.2 15.5 17.14 19.41 22.6 25.44 3.67 35.47 + Also occurred on an earlier date(s) (1) From the 1971-2 Monthly Normals # Denotes amounts of a trace (2) Derived from station s available digital record: 1927-21 @ Denotes mean number of days greater than but less than.5 (3) Derived from 1971-2 serially complete daily data ** Statistics not computed because less than six years out of thirty had measurable precipitation Complete documentation available from: /oa/climate/normals/usnormals.html 26-B
s Climate Division: CA 6 NWS Call Sign: No. 2 1971-2 Asheville, North Carolina 2881 COOP ID: 4792 Month s/medians (1) Extremes (2) Median Median (inches) Totals Number of s (1) Monthly Monthly Thresholds Thresholds.1 1. 3. 5. 1. 1 3 5 1 Jan............. Feb............. Mar............. Apr............. May............. Jun............. Jul............. Aug............. Sep............. Oct............. Nov............. Dec............. Ann.. N/A N/A........... + Also occurred on an earlier date(s) #Denotes trace amounts (1) Derived from Climatology and 1971-2 daily data @ Denotes mean number of days greater than but less than.5 (2) Derived from 1971-2 daily data -9/-9.9 represents missing values Complete documentation available from: Annual statistics for /Median snow depths are not appropriate /oa/climate/normals/usnormals.html 26-C
Climate Division: CA 6 NWS Call Sign: No. 2 1971-2 Asheville, North Carolina 2881 COOP ID: 4792 Temp (F) Freeze Data Spring Freeze Dates (Month/) Probability of later date in spring (thru Jul 31) than indicated(*).1.2.3.4.5.6.7.8.9 36 3/19 2/26 2/11 1/27 1/12 12/22 / / / 32 1/28 1/4 / / / / / / / 28 / / / / / / / / / 24 / / / / / / / / / 2 / / / / / / / / / 16 / / / / / / / / / Temp (F) Freeze Dates (Month/) Probability of earlier date in fall (beginning Aug 1) than indicated(*).1.2.3.4.5.6.7.8.9 36 11/25 12/7 12/15 12/24 1/1 1/13 / / / 32 12/19 1/1 / / / / / / / 28 / / / / / / / / / 24 / / / / / / / / / 2 / / / / / / / / / 16 / / / / / / / / / Temp (F) Freeze Free Period Probability of longer than indicated freeze free period (s).1.2.3.4.5.6.7.8.9 36 >365 >365 >365 >365 >365 >365 329 34 276 32 >365 >365 >365 >365 >365 >365 >365 >365 334 28 >365 >365 >365 >365 >365 >365 >365 >365 >365 24 >365 >365 >365 >365 >365 >365 >365 >365 >365 2 >365 >365 >365 >365 >365 >365 >365 >365 >365 16 >365 >365 >365 >365 >365 >365 >365 >365 >365 * Probability of observing a temperature as cold, or colder, later in the spring or earlier in the fall than the indicated date. / Indicates that the probability of occurrence of threshold temperature is less than the indicated probability. Derived from 1971-2 serially complete daily data Complete documentation available from: /oa/climate/normals/usnormals.html 26-D
No. 2 1971-2 Asheville, North Carolina 2881 COOP ID: 4792 Climate Division: CA 6 NWS Call Sign: Degree s to Selected Base Temperatures ( F) Base Heating Degree s (1) Below Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann 65 324 253 248 172 142 8 26 24 55 73 193 312 192 6 182 129 121 72 55 19 1 3 13 14 87 175 871 57 113 75 69 32 23 6 5 3 45 111 482 55 78 47 41 16 11 2 25 78 298 5 19 8 7 1 4 2 59 32 Base Cooling Degree s (1) Above Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann 32 7 673 781 831 99 958 179 1118 146 996 88 714 1613 55 65 76 18 157 27 27 366 45 356 284 144 79 2517 57 38 48 74 112 156 214 34 343 31 224 13 5 1967 6 14 18 33 62 96 137 212 253 219 142 55 21 1262 65 2 6 13 28 48 82 12 111 46 11 3 47 7 5 8 13 36 4 7 19 Growing Degree Units (2) Base Growing Degree Units (Monthly) Growing Degree Units (Accumulated Monthly) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 4 457 47 543 599 67 729 84 88 821 761 577 47 457 927 147 269 2739 3468 438 5188 69 677 7347 7817 45 33 325 388 449 515 579 685 725 671 66 427 318 33 628 116 1465 198 2559 3244 3969 464 5246 5673 5991 5 156 185 233 299 36 429 53 57 521 451 277 17 156 341 574 873 1233 1662 2192 2762 3283 3734 411 4181 55 53 65 96 158 26 279 375 415 371 297 136 59 53 118 214 372 578 857 1232 1647 218 2315 2451 251 6 6 15 24 47 74 132 22 26 221 146 43 7 6 21 45 92 166 298 518 778 999 1145 1188 1195 Base Growing Degree Units for Corn (Monthly) Growing Degree Units for Corn (Accumulated Monthly) 5/86 243 24 277 321 372 429 529 571 518 449 32 251 243 483 76 181 1453 1882 2411 2982 35 3949 4269 452 (1) Derived from the 1971-2 Monthly Normals Complete documentation available from: (2) Derived from 1971-2 serially complete daily data /oa/climate/normals/usnormals.html Note: For corn, temperatures below 5 are set to 5, and temperatures above 86 are set to 86 26-E
Notes a. The monthly means are simple arithmetic averages computed by summing the monthly values for the period 1971-2 and dividing by thirty. Prior to averaging, the data are adjusted if necessary to compensate for data quality issues, station moves or changes in station reporting practices. Missing months are replaced by estimates based on neighboring stations. b. The median is defined as the middle value in an ordered set of values. The median is being provided for the snow and precipitation elements because the mean can be a misleading value for precipitation normals. c. Only observed validated values were used to select the extreme daily values. d. Extreme monthly temperature/precipitation means were selected from the monthly normals data. Monthly snow extremes were calculated from daily values quality controlled to be consistent with the Climatology. e. Degree s were derived using the same techniques as the 1971-2 normals. Compete documentation for the 1971-2 Normals is available on the internet from: /oa/climate/normals/usnormals.html f. number of days statistics for temperature and precipitation were calculated from a serially complete daily data set. Documentation of the serially complete data set is available from the link below: g. fall and snow depth statistics were derived from the Climatology. Documentation for the Climatology project is available from the link under references. Data Sources for Tables Several different data sources were used to create the Clim2 climate summaries. In some cases the daily extremes appear inconsistent with the monthly extremes and or the mean number of days statistics. For example, a high daily extreme value may not be reflected in the highest monthly value or the mean number of days threshold that is less than and equal to the extreme value. Some of these difference are caused by different periods of record. extremes are derived from the station s entire period of record while the serial data and normals data were are for the 1971-2 period. Therefore extremes observed before 1971 would not be included in the 1971-2 normals or the 1971-2 serial daily data set. Inconsistencies can also occur when monthly values are adjusted to reflect the current observing conditions or were replaced during the 1971-2 Monthly Normals processing and are not reconciled with the Summary of the data. a. Temperature/ Precipitation Tables c. Tables 1. 1971-2 Monthly Normals 1. Climatology 2. Cooperative Summary of the 2. Cooperative Summary of the 3. National Weather Service station records 4. 1971-2 serially complete daily data d. Freeze Data Table 1971-2 serially complete daily data b. Degree Table 1. Monthly and Annual Heating and Cooling Degree s Normals to Selected Bases derived from 1971-2 Monthly Normals 2. Normal Growing Degree Units to Selected Base Temperatures derived from 1971-2 serially complete daily data References U.S. Climate Normals 1971-2, /normals.html U.S. Climate Normals 1971-2-Products Clim2, /oa/climate/normals/usnormalsprods.html Climatology Project Description, /oa/climate/monitoring/snowclim/mainpage.html Eischeid, J. K., P. Pasteris, H. F. Diaz, M. Plantico, and N. Lott, 2: Creating a serially complete, national daily time series of temperature and precipitation for the Western United States. J. Appl. Meteorol., 39, 158-1591, www1.ncdc.noaa.gov/pub/data/special/ serialcomplete_jam_9.pdf