Found insidedeaths per year caused by tornadoes or the average of 16 deaths per year ... Statistically that is largely a factor of population and thunderstorm activity. Found inside – Page 104The season's first round of severe thunderstorms usually arrives in late April or early May. A low pressure system moving across Colorado will still bring ... Found inside – Page 59The thunderstorms tend Drought is caused by persistent low precipitation to be ... in the North Pacific Ocean and occur in winter and through 1922 , annual ... Found inside – Page 504During winter months , daytime temperatures may average 70 ° , with night ... Nearly the entire State is in the Colorado River drainage basin emptying ... Found inside – Page 5About 35 thunderstorms occur each year , 21 of which are in summer . Average seasonal snowfall is 40 to 80 inches . The greatest snow depth at any one time ... Found insideOn the average , light fog occurs at Denver twenty times a year ; at Pueblo ... For the open country , visibility is better in Colorado than for the United ... Found inside – Page 3Thunderstorms occur on about 60 days each year , and most occur in summer . The average seasonal snowfall is 29 inches . The greatest snow depth at any one ... Found inside – Page 116On the average , light fog occurs at Denver twenty times a year ... For the open country , visibility is better in Colorado than for the United States as a ... Found inside – Page 2Thunderstorms number about 35 each year , and about 21 thunderstorms occur in summer . Average seasonal snowfall is 45 inches in most of the survey aiea but ... Found inside – Page 4The average size of a hurricane is about 550 km (340 mi) across. ... Figure 8.5 describes the annual average number of thunderstorm days across the United ... Found inside – Page 47EXISTING ENVIRONMENT REGIONAL 2 Most of the streamflow is regulated by ... These high water levels persist until July when the annual snowpack has melted . Found inside – Page 17Between 1977 and 2006, an average of 62 people were killed each year by ... High Winds Damage caused by severe straight-line winds during thunderstorms is ... Found inside – Page 461 ) is very small , mostly occurring as surface runoff from summer thunderstorms . The mean annual flow - weighted dissolvedsolids concentration is 6,740 mg ... Found inside – Page 1Most of the total annual flow in the Colorado River Basin results from natural runoff from mountain snowmelt . Because of this , natural flow is very high ... Found inside – Page 166The highest speed of the wind recorded in Denver over a period of 54 years was 53 miles an hour , on May 1 , 1902 . A comparison of the average and highest true speed of winds in Denver and other cities in the United States is as follows : City Average High ... Omaha 10.8 14.7 9.4 87 81 73 Thunderstorms — Thunderstorms occur on an average of 50 times a year over the greater portion of Colorado . Found inside – Page 21Overseeding , which may cause precipitation decreases , will be avoided . Based on annual isohyetal maps similar to Figure 5 and the ratio of annual ... Found inside – Page 1533The eastern slope receives much less precipitation than the western slope , especially in the form of snow , and there all the floods come from cloudbursts . ... In one drainage area , the mean annual precipitation will vary from 9 to 25 in . , computed over a period of 40 or 50 years , and ... Recently , a series of storms moved down the Colorado River on one side of the drainage basin and , at the same time ... Found inside – Page 143In the summer months and on many other hot days the mornings are quite apt ... The average number of days per year with a snowfall of 5 inches or more is at ... Found inside – Page 3Thunderstorms occur on about 44 days each year , and most occur in summer . Average seasonal snowfall is 92 inches . The greatest snow depth at any one time ... Found inside – Page 150... ( km ) lot AVERAGE POINT FREQUENCIES ILLINOIS - COLORADO 25 DAYS / YEAR + ... storms taking place in the vicinity of the station , it is an indicator of ... Found inside – Page 14The total annual precipitation is 18 inches at Evergreen and 15 inches at ... Thunderstorms occur on about 40 days each year , and most occur in summer . Found inside – Page 7Sudden thunderstorms can be quite severe in July , August , and early September . Snowfall averages 68.8 inches per year with the heaviest fall in January . Found inside – Page 2During winter months , daytime temperatures may average 70 ° , with night ... Nearly the entire State is in the Colorado River drainage basin emptying into ... Found inside – Page 169The greatest depth of snow on the ground at any one time This section gives ... Average annual windspeed is 9 miles per hour , and average monthly Summers ... Found inside – Page 1236It is gratifying that so many members of the Society are working along these lines of investigating the facts , correlating them , developing ... In one drainage area , the mean annual precipitation will vary from 9 to 25 in . , computed over a period of 40 or 50 years , and of ... Recently , a series of storms moved down the Colorado River on one side of the drainage basin and , at the same time , another series ... Found inside – Page 4humid , with wide diurnal and annual temperature ranges and great variation in ... of summer thunderstorms , streamflow may be prolonged during some years . Found inside – Page 33SUMMER STORMS LLLLLLLLL LLLLL Winter is a fun time of year , with all sorts of enjoyable activities — skating , sledding ... For comparison , there are 100 thunderstorm days in central Florida and up to 80 in parts of the Rocky Mountains in Colorado and New Mexico . ... that happens 35 to 55 times per year may seem commonplace . , consider this : the average thunderstorm goes on for about an hour ... Found inside – Page 5-3The flow in the Colorado River is controlled by Lake Mead and by Lake ... An average of 26-28 thunderstorm days a year for a 30 - year period has been ... Found inside – Page 49The flow in the Colorado River is controlled by Lake Mead and by Lake ... An average of 26-28 thunderstorm days a year for a 30 - year period has been ... Found inside – Page 2The prevailing direction of the wind is from metropolitan area that includes the City of Colorado the north - northeast . Average annual ... Found inside – Page 1236It is gratifying that so many members of the Society are working along these lines of investigating the facts , correlating them , developing ... In one drainage area , the mean annual precipitation will vary from 9 to 25 in . , computed over a period of 40 or 50 years , and of ... Recently , a series of storms moved down the Colorado River on one side of the drainage basin and , at the same time , another series ... Found inside – Page 2196 Colorado Springs > 70 > 50 59 * Apparently about 100 stations . Map is for number of thunderstorms , not days . Table 2 . On each , west - central ... Found inside – Page 3The total annual precipitation is 16.43 inches . ... on May 6 , 1973. Thunderstorms occur mostly in June , July , and August . During these months , hail is ... Found inside – Page 2196 Colorado Springs > 70 > 50 59 * Apparently about 100 stations . Map is for number of thunderstorms , not days . Table 2 . On each , west - central ... Found inside – Page 3Thunderstorms number about 48 each year , 35 of which occur in summer . Average seasonal snowfall is 60 to 70 inches . The greatest snow depth at any one ... Found inside – Page 2-31The average annual wind speed for the period 1941-1970 at Grand Junction is 8.1 mph ( National climatic Center 1971 ) . Severe Weather Events Thunderstorms ... Found insideIn some areas , rainfall amounts that occurred during these intense storms exceeded the average annual rainfall in the Colorado Springs area . Found inside – Page 16The average annual flow per square mile of drainage area drainage area varies ... many of the streams in the western part do not flow for part of the year ... Found inside – Page 47Any management objective should yield is about 800 pounds of air - dry herbage ... The potential If this site is heavily grazed for a long period of annual ... Found inside – Page 2Thunderstorms number about 41 the natural rangeland during the summer months . each year , 29 of which occur in summer . Many privately owned areas have an ... Found inside – Page 4The average size of a hurricane is about 550 km (340 mi) across. ... Figure 8.5 describes the annual average number of thunderstorm days across the United ... Found inside – Page 3-78With an average frequency of 6 or more hail days per year , some counties of eastern ... Lightning is one of the greatest weather hazards in Colorado . Each ... Found inside – Page 2There are about 44 thunderstorms each year , 30 of which occur in summer . Average seasonal snowfall is 28 inches . The greatest snow depth at any one time ... Found inside – Page 2033Average years : ratio of number of tropical storms of African origin to ... It is speculated that the 1967–1989 average may originate from an African wave . Found inside – Page 4-43In the colder season , storms that develop off southern California move ... but coverage is spotty and erratic , often leading to drought in many areas of ... Found insideThe farthest west portion of Colorado is part of the Colorado Plateaus and ... of snow per season (on average) and have temperatures that can sustain a ... 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