Purtroppo almeno io non posso aiutarti molto... non ho mai usato nessuno dei 2 software. 
Se magari posti i due file però, ci può provare a ragionare sopra....
Ciao Andrea,
la cosa potrebbe essere interessante,  almeno per me:-)
Il mio problema è che non ho il pc da lasciar acceso, quindi posso usera il box con openwrt.
Openwrt interroga la ws2300 e tira fuori i dati come li vedi nel file ws2300, mentre cumulus realtime per funzionare vuole un file formattato in modo particolare ( e quello non è un problema ) ma con i campi che vedi nel file cumulus.
Il mio problema è capiere come associare i cambi della stazione a quelli di cumulus, alcuni li ho trovati, alcuni si calcolano ( altezza nuvole ) ma altri non riesco a trovarli
ciao
sh
file cumulus
3       8.4     outside temperature     <#temp>
4       84      relative humidity       <#hum>
5       5.8     dewpoint        <#dew>
6       24.2    wind speed (average)    <#wspeed>
7       33.0    latest wind speed reading       <#wlatest>
8       261     wind bearing (degrees)  <#bearing>
9       0.0     current rain rate (per hour)    <#rrate>
10      1.0     rain today      <#rfall>
11      999.7   barometer       <#press>
12      W       current wind direction (compass point)  <#currentwdir>
13      6       wind speed (beaufort)   <#beaufortnumber>
14      km/h    wind units - m/s, mph, km/h, kts        <#windunit>
15      C       temperature units - degree C, degree F  <#tempunitnodeg>
16      hPa     pressure units - MB, hPa, in    <#pressunit>
17      mm      rain units - mm, in     <#rainunit>
18      146.6   wind run (today)        <#windrun>
19      +0.1    pressure trend value    <#presstrendval>
20      85.2    monthly rainfall        <#rmonth>
21      588.4   yearly rainfall         <#ryear>
22      11.6    yesterday's rainfall    <#rfallY>
23      20.3    inside temperature      <#intemp>
24      57      inside humidity         <#inhum>
25      3.6     wind chill      <#wchill>
26      -0.7    temperature trend value         <#temptrend>
27      10.9    today's high temp       <#tempTH>
28      12:00   time of today's high temp (hh:mm)       <#tTempTH>
29      7.8     today's low temp        <#tempTL>
30      14:41   time of today's low temp (hh:mm)        <#TtempTL>
31      37.4    today's high wind speed (average)       <#windTM>
32      14:38   time of today's high wind speed (average) (hh:mm)       <#TwindTM>
33      44.0    today's high wind gust  <#wgustTM>
34      14:28   time of today's high wind gust (hh:mm)  <#TwgustTM>
35      999.8   today's high pressure   <#pressTH>
36      16:01   time of today's high pressure (hh:mm)   <#TpressTH>
37      998.4   today's low pressure    <#pressTL>
38      12:06   time of today's low pressure (hh:mm)    <#TpressTL>
39      1.8.7   Cumulus version         <#version>
40      819     Cumulus build number    <#build>
41      36.0    10-minute high gust     <#wgust>
42      10.3    heat index      <#heatindex>
43      10.5    humidex         <#humidex>
44      13      UV Index        <#UV>
45      0.2     evapotranspiration today        <#ET>
46      14      solar radiation W/m2    <#SolarRad>
47      260     10-minute average wind bearing (degrees)        <#avgbearing>
48      2.3     rainfall last hour      <#rhour>
49      3       The number of the current forecast as per Strings.ini. If the forecast is not being provided by the station and not being generated by Cumulus a value of 0 (zero) is returned  <#forecastnumber>
50      1       Flag to indicate that the location of the station is currently in daylight (1 = yes, 0 = No)    <#isdaylight>
51      1       If the station has lost contact with its remote sensors "Fine Offset only", a Flag number is given (1 = Yes, 0 = No)    <#SensorContactLost>
52      NNW     Average wind direction  <#wdir>
53      2040    Cloud base      <#cloudbasevalue>
54      ft      Cloud base units        <#cloudbaseunit>
55      12.3    Apparent Temperature    <#apptemp>
56      11.1    Sunshine hours so far today     <#SunshineHours>
57      420.1   Current theoretical max solar radiation         <#CurrentSolarMax>
58      1       Is it sunny? 1 if the sun is shining, otherwise 0       <#IsSunny> 
file ws2350
date 2007-Jan-13
Time 12:37:50
Ti 22.3
Timin 17.0
Timax 26.3
TTimin 18:38
DTimin 2006-12-30
TTimax 20:23
DTimax 2007-01-06
To 9.9
Tomin 3.6
Tomax 11.9
TTomin 06:20
DTomin 2007-01-13
TTomax 14:15
DTomax 2007-01-05
DP 7.1
DPmin 1.8
DPmax 9.0
TDPmin 05:43
DDPmin 2007-01-13
TDPmax 11:05
DDPmax 2007-01-12
RHi 38
RHimin 24
RHimax 47
TRHimin 02:20
DRHimin 2001-01-01
TRHimax 12:49
DRHimax 2007-01-12
RHo 83
RHomin 39
RHomax 98
TRHomin 19:50
DRHomin 2006-12-30
TRHomax 10:15
DRHomax 2007-01-12
WS 4.0
DIRtext N
DIR0 0.0
DIR1 0.0
DIR2 0.0
DIR3 22.5
DIR4 22.5
DIR5 22.5
WC 9.9
WCmin 1.6
WCmax 10.8
TWCmin 22:32
DWCmin 2007-01-12
TWCmax 11:35
DWCmax 2007-01-12
WSmin 0.0
WSmax 25.6
TWSmin 12:35
DWSmin 2007-01-13
TWSmax 11:40
DWSmax 2007-01-12
R1h 0.00
R1hmax 0.51
TR1hmax 02:31
DR1hmax 2007-01-12
R24h 0.00
R24hmax 3.10
TR24hmax 17:59
DR24hmax 2007-01-11
Rtot 4.66
TRtot 23:26
DRtot 2007-01-07
RP 1027.100
RPmin 1012.000
RPmax 1030.400
TRPmin 06:25
DRPmin 2007-01-02
TRPmax 10:25
DRPmax 2007-01-10
Tendency Rising
Forecast Sunny
(END)