Show WEATHER EATHER BUREAUS ANNUAL BULLETIN Comparisons of Statistics on Temperature Rain Wind and Sunshine GIVE INTERESTING DATA RECORDS OF SALT LAKE OFFICE SINCE 1874 Under the heading Annual Meteoro Meteorological logical Summary Section Director Al Alfred Alfred fred H ThIessen of the weather bureau has just published a bulletin of at weather for 1909 which covers precipitation tern tem temperature barometric pressure frost and snow data humidity wind velocity and other subjects of Interest to followers of the weather leports The bulletin which contains six charts Is more complete than an anything of the kind ever pUblished before In Utah and Mr Thiessen believes that It will wUl be of Inestimable value to mIning hydraulic and agricultural engineers In every part of the state One of the features of the paper Is the comparative data on the monthly and annual mean temperature in the form of a chart ThIs chart gIves the aver average average age temperatures for the twelve months ot of each year since 1875 Inclusive to together together gether with the highest and lowest tern tem temperatures The coldest January ever re reported reported ported was that of 1889 and 1893 when an average temperature of 21 l degrees above zero January of 1909 was the warmest ever recorded In the Salt Lake weather bureau since Its establishment establishment In 1874 The temperature In this month averaged s 8 10 de degrees grees above normaL On the other hand the coldest December on record was that of 1900 when the mercury averaged only 24 degrees above zero which in marked contrast to January was nearly 10 degrees I below normal Mr Thiessen in his gen I erat eral summary of conditions says that no other month exhibited such lIuch marked variations from tIle the normal as these two The only other month ip ht 1909 which experienced extreme temperature was April 46 degrees above zero b being ing the average temperature for this month Only twice before since the beginning of the records In 1874 have temperatures as low lowas lowas as FaIs been recorded The Th precipitation chart Is also complete since 1875 No records In precipitation were broken during 1909 although the total for the year was nearly four Inches above normal The hIghest annual total was In the first year the records were taken 1875 when the least total amount was recorded In 1 only 1033 inches falling In thIs Year One Long Drouth November 1904 was the only month since 18 1875 5 when not a drop of rain or snow fell during the entire month although there were about fIve months since Ib when only a trace of precipitation was recorded The highest mean amount of precipitation for anyone any one month since was In November ot of that yea year r when inches of tall fall were recorded The mean precipitation records for the entire span of years shows May to have been the heavy raInfall month with a mean figure of The wind chart of the bulletin Is another an another other feature and a sky chart charP Is also to tobe tobe be seen In the bulletin giving the nuni num number ber of clear partly cloudy and cloudy days In each month of at 1909 There Is alist a alist list of the thunderstorms of the year a alist list fist of gales over forty miles per hour hourIn In velocity and dense fogs are also treat treated treated ed to some extent In the summary of the temperature for forthe forthe the year it is shown that the highest ever recorded at the local office was wason wason on July I 1 when the mercury rose roseto roseto to degrees while the lowest was De Dc December cember 18 the temperature on that date being only 4 degrees above zero The greatest monthly range in temperature shown Is from June 10 when the ther thermometer registered 44 degrees to June 30 20 when It reached 95 degrees The precipitation summary gives the longest periods without any rain or snow snowfall snowfall fall longest periods of rainy day and amount ot of fall and dates of bait haU and sleet There Thera is also a summary of at frost and snow data No charge Is made for the bulletin which can bE obtained by application to the local office of the United States weather bureau In the Boston building |