new_contents: import netCDF3
  import iemdb
  COOP = iemdb.connect('coop')
  ccursor = COOP.cursor()
  
  nc = netCDF3.Dataset('DSM.nc')
  
  byear = nc.variables['byear'][:]
  maxt = nc.variables['maxt']
  mint = nc.variables['mint']
  pcpn = nc.variables['pcpn']
  snow = nc.variables['snow']
  snwg = nc.variables['snwg']
  
  for yr in range(byear, 1893):
    for mo in range(12):
      for dy in range(31):
        high = float(maxt[yr-byear,mo,dy]) / 1.0
        if high < -100 or high > 150:
          high = 'null'
        low = float(mint[yr-byear,mo,dy])  / 1.0
        if low < -100 or low > 150:
          low = 'null'
        precip = float(pcpn[yr-byear,mo,dy]) / 100.0
        if precip < -100 or precip > 150:
          precip = 'null'
        snowfall = float(snow[yr-byear,mo,dy]) / 10.0
        if snowfall < -100 or snowfall > 150:
          snowfall = 'null'
        snowd = float(snwg[yr-byear,mo,dy]) / 1.0
        if snowd < -100 or snowd > 150:
          snowd = 'null'
        if high == 'null' or low == 'null':
          continue
  
        sql = """INSERT into alldata(stationid, day, high, low, precip,
              snow, sday, year, month, snowd) VALUES ('ia2203', '%s-%s-%s',
              %s, %s, %s, %s, '%02i%02i', %s, %s, %s)""" % (yr,
              mo+1, dy+1, high, low, precip, snowfall, mo+1, dy+1, yr, mo+1,
              snowd)
        ccursor.execute(sql)
  
  
  nc.close()
  ccursor.close()
  COOP.close()
  
subject: add something to ingest NWS nc files