Document B5gyqD7zbRB6BwqdZmjXk0R2j

230 CHAPTER 11 1950 Guide Table 1. Winter Climatic Conditions'--(Continued) Col. 1 State Col. 2 Station** Col. 3 Ele- FT Col. 4 Period or Record*1 Col. 5 Lowest Temp. on Record* F . Col. 6 Average Annual Min. Temp.* F Col. 7 Design Dht-Bulb Temp, on TAC97H5? Basis1 F Col. 8 Wind VEL.AT Design Temp. Mph Design Drt-Bulb Common Use*1 F Jan.-Feb.* Mph Pa. ` R.I ac____ Philadelphia----CC 1*hi ladelpbia--A P Ihttshtirph . UL Pittsburgh....... AP Reading-- CC Scranton____ CO Sunbury,, .......AP Block Island___CC Providence___ CC Charleston_____CC ('harleston--..A P Columbia .....CC Columbia. AP S.D____ Huron ,, Huron .CO AP Rapid City._ _CC Rapid City AP Tenn.__ Chattanooga.--CG Chattanooga___ AP Knoxville.--.CG Knoxville.. AP Memphis........... CC Texas,, -' Nashville. ._ .CO Nashville____ AP Abilene Abilene CO _AF Amarillo..........._CO Amarillo_ Austin AP CO Austin - AP Brownsville--CO Brownsville___AP Corpus Christi._CO Corpus Christ*__AP rfclln ftfl Dallas IVJ Rio ..AP CO Kl Paso ...... CO HI Paso............ AP Port Worth____CO Port Worth..--.A P Calveston_____ CO Calveston.. AP Palestine.. CO Port Arthur--CO Port Arthur. AP San Antonio , CO San Antonio * AP Warn AP Wink.. AP Utah-- Milford. _AP Modena_______ CO Salt Lake City ...CO Salt Lake City__AP vt Burlington_____CO Burlington...___ AP Va.-L__\ Cape Henry___ CO Lynchbure CO Lynchburg_____ AP Norfolk.. ..CO Richmond_____ CO - Richmond--__AP I -Roanoke-- AP Wash___ Ellensburv AP North Head.___CO Seattle___ _____ AP Spokane_______CO Spokane___--AP Tacoma__ CO Tatoosh Is....... CO t..- Yakima. W. Va__ FllrinE AP m Parkersburg.___CO 200 18 929 1284 311 877 448 :46 77 59 51 401 227 1342 1287 3309 3220 952 675 1024 1007 348 714 610 1748 1756 3686 3595 625 625 140 2S 21 45 1871-1947 1940-1947 1875-1947 1935-1947 1913-1947 1901-1947 . 1935-1939* 1881-1947 1904-1947 1871-1947 1940-1947 1887-1947 1939-1947 Up to 1946 1881-1938 1938-1947 1888-1947' 1939-1947 1879-1947 1940-1947 1871-1942 1942-1947 1872-1941 ' 1941-1947 1871-1947 1939-1947 1885-1944 1940-1947 1892-1941 1941-1947 1897-1942 1942-1947 1922-1943 1943-1947- 1887-1942* 1943-1946* 520 1020 3792 3956 708 728 128 * 9 1940-1947 - 1905-1947 1880-1942 1939-1947 1898-1939* 1940 1947 1871-1947 1939-1947 555 64 21 770" 800 513 2811 5095 5472 4346 4254 -409 335 24 644 951 91 180 172 1194 1731 199 47 20.10 1974 279 110 1066 685 1932-1947 1881-1947 1917-1947 1944.1947 1885-1941 - 1942-1947 1931-1947 ' 1935-1939* 1935-1939* 1901-1947 1874-1947 1928-1947 1884-1943 194.3-1944 1874-1947 1874-1944 1944-1947 1871-1947 1897-1947 1929-1947 1935-1939* 1935-1939* 1884-1947 1890-1947 1928-1947 1881-1941 1941-1947. 1897-1947 1883-1947 1938-1946 1944-1947 1898-1944 1888-1947 -11 1 -20 -16 -14 -19 6 -2 -10 -17 7 14 -2 9 * 1 22 19 -43 --30 --34 -27 -10 6 -16 1 --9 -26 -21 * 9 2 9 - -13 -15 -6 -9 -16 -7 --1 13 12 30 11 23 -. 5 .12 --5 11 -8 .4 8 14 '5 0 29 13 16 12 22 -6 It 24 . 4 21 17 7 -17 -32 -20 -30 -29 -23 5 -7 7 2 -3 -12 -1* -2 -17 s 8 15 10 11 3 -30 -7 7 7 -24 -4 --28 ` -27 . 2%' 20 -S 6 9k ` '7 26 19 19 14 20 11 23 26 33 32 26 23 -2 * 7 15 .21 1 24 4 0 11.0 0 1L6 12.1 0 9.0 -5 7.6 7.1 0 20.6 0 12.1 15 . 10.5 6.9 10 8.0 10 --20 8.4 !0.7 -20 8.0 10 6.2 0 7.7 7.2 8.9 7J 10.4. 119 0 0 15. -3 -10 20 9.3 10.1 12.1 8.3 30 10.4 20 - 11.0 10.6 8.8 IS 8.0 10 9.0 8.6 10 10.5 20 11.2 20 10.5 9.2 15 8.0 20 10.7 7.6 11.6 8.5 . 7.7 7.4 20 -15 -10 - -10 8.3' 9.0 7.8 11.6 10 14.0 5 8.1 15 12.1 15 8.1 7.1 3.8 . 6.3 5.1 . 20 ` 15 -15 . 15 16.1 9.8 6.2 8.0 18.9 4.i -10 ;-io *' 6.2 7.2 Heating Load 231 Table 1. Winter Climatic Conditions'--(Concluded) Cox* 1 State Col. 2 Station1* Col. 3 Col. 4 Eleva Period tion0 Record*1 FT Col. 5 Low est Temp. on Recj obd. F Col. 6. Col. 7 Col. 8 Col. 9 Col. 10 * Design Design Aver age Annual Min. Temp. DryBulb Temp, on TAC 97*4%. Wind Vel. at Design Temp.* DbyBuls Temp. m Common Basis* Use1*. Avb. Wind '' Vel. Dec. Jan. , Feb.1 : F F Mph F - Mph . wise.. wyo Rock Springs. .AP 598 725 677 1008 884 744 707 6144 6161 5448 5568 6746 1886-1947 1872-1947 1943-1947 1858-1947. 1935-103^ 1870-1947 1927-1947 1873-1935 1935-1947 1891-1946 1946-1947 1932-1942 -36 -43 -28 -29 -25 -29 -38 -34 -40 -14 -33 Alt'----B. C........... P. E. I.... Que........... Newf......... 2219 Vancouver.............. 22 228 786 164 136 912 294 644 379 Charlottetown....... 186 Montreal.................. 187 295 1414 1062 St. Johns................. 428 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Up to 1943 Ud to 1943 Up to 1943 Up to 1943 Up to 1943 -57 2 -2 -54 -35 -12 -27 -35 -40 -26 -27 -29 -34 -70 -68 -21 -18 -21 -12 -18 -12 -41 13 19 -38 -25 0 -14 -24 -29 -11 -13 -18 -23 -47 -54 -5 -17 -8 -6 -3 -7 6.9 9.1 11.9 11.1 9.1 -20 -25 /10.5 9.3 --15 .10.1 -15 i 12.1 : -15 1 13.3 ' -18 3.9 . -40 10 5 -35 -20 t-6 -5 -20' -30 -10 -10 --15 -20 -45 --45 -10 . 7.5 ; 1 4.5 : * 12.6 10.1 9.1 14.3 10.3 8.4 8.0 . 13.6 9.8 11.3 - 13.3. 5.1 : 3.7 12 * United States Data compiled from U. S. Weather Bureau Records for yearo indicated, and Canadian data from Meteorological Servioe of Canada corrected to 1946. bCol. 2. The stations followed by letters AP are airport stations, all others are city office stations and are followed by letters CO. CoL3. The marked r. are grminrl elevations of the station. Ail other elevations given are the actual elevations of the thermometer bulb above mean sea level. d Coi. 4. The periods of record indicated apply only to the lowest temperatureever recorded shown in Col. 6 and generally extend from a summer month of the first year indicated through the spring months of the last year indicated. The periods marked by d terminated in Deoember of the year indicated. * Average of readings of one lowest temperature obtained for each year. * It should be noted that Col. 7 applies only to airports, as these data for city stations are not available at thwi time. The temperature shown is the minimum hourly out-door temperature which has been equalled or exceeded 97$ per cent of the total hours in December, January and February for the period of record. It is out that in most cases the airportstations are outside of the city and these data would apply primarily to rural areas. ,,- * Col. 8 indicates the average wind velocity which occurred at temperatures the same as, and lower than; the temperatures shown in Col. 7. h CoL 6 records design temperatures in use by A.8.H.V.E. Members as reported by Chapter Secretaries ter thn various stations. Where these were not available the design temperatures from an ACRMA publica tion and various other sources have been inserted. `The wind velocities invested in Col. 10 were furnished by the U. S. Weather Bureau and corrected' through Feb. 1948. 1 The bulletin published by A.S.H.V.E. for annual weather data of Detroit indicates 6 as design temperature. k Computed for Reading by Earl Shelley and O. F. Smith. words, a person may feel warm or cool at the same dry-bulb temperature, depending on the relative humidity and air motion. The optimum winter effective temperature for sedentary persons, as determined at the A.S.H.V.E. Research Laboratory, is 67-68 ET. As explained in Chapter 6 for so-called still air conditions, a relative humidity of approximately 50 per cent is required to produce-an effective temperature of 68 ET when the dry-bulb temperature is 72.5 F; However, even where provision is made for artificial humidification, the relative humidity is seldom maintained higher than 40 per cent during the ex-